Engineer

Engineer
The Engineer is a unique class that requires planning and positioning to be successful.
Health	130 (+39 per level)
Health Regen	1.5/s (+0.3 per level) 1/s (+0.2 per level) 0.6/s (+0.12 per level)
Damage	14 (+2.8 per level)
Speed	7 m/s
Armor	0 ( 70)
Unlock	Engineering Perfection
Umbra Title
Fortification Expert
Ending Phrase
Escaped : ..and so he left, with newfound inspirations. Vanished : ..and so he vanished, unable to explain what his eyes had seen.

TR12 Gauss Auto-Turret
Health	130 (+39 per level)
Health Regen	1.5/s (+0.3 per level)
Damage	16 (+3.2 per level)
Speed	Stationary
Armor	0

TR58 Carbonizer Turret
Health	130 (+39 per level)
Health Regen	1.5/s (+0.3 per level)
Damage	16 (+3.2 per level)
Speed	7 m/s
Armor	0

The Engineer is a playable character in Risk of Rain 2.

With an assortment of deployable gadgets, the Engineer's strength comes not from him alone, but rather his ability to set up a variety of defensive measures.

The Engineer's signature ability is his deployable turrets, which gain the same items that Engineer himself has. This makes him unique, as item selection doesn't necessarily come down to what benefits himself, but also what can benefit his turrets.

Completing the Engineering Perfection challenge will unlock Engineer as a playable survivor.

Skills

Primary

Bouncing Grenades
	Type	Primary
	Proc Coefficient	1.0 per grenade, up to 1.0 x 8
	Description	Charge up to 8 grenades that deal 100% damage each.
Notes
Can sprint while charging (start charging and then sprint, needs to be repeated for every attack).

Secondary

Pressure Mines
	Type	Secondary
	Cooldown	8s
	Proc Coefficient	1.0
	Description	Place a two-stage mine that deals 300% damage, or 900% damage if fully armed. Can place up to 4.
Notes
Mines take a few seconds to 'arm' to their full 900% damage potential. This is indicated by a large green circle and a shaft of light from the mine's center. Mines do not stick to allies or enemies, but do stick to Bubble Shield. The explosion has no damage falloff. Mines' detection radius is 7.5m when fully armed.

Spider Mines
	Type	Secondary
	Cooldown	8s
	Proc Coefficient	1.0
	Description	Place a robot mine that deals 600% damage when an enemy walks nearby. Can place up to 4.
Notes
Unlocked via the Engineer: 100% Calculated Challenge. (As Engineer, defeat the teleporter boss in less than 5 seconds after it spawns.) Do not need to arm, making them a more immediate offensive option. Deals an immediate 600% damage if thrown directly onto enemies, double that of the Pressure Mines when not fully armed. Actively seek out enemies that enter their radius, rather than enemies needing to come close.

Utility

Bubble Shield
	Type	Utility
	Cooldown	25s
	Description	Place an impenetrable shield that blocks all incoming damage.
Notes
Agile [ Agile ] The skill can be used while sprinting. . Lasts for 15s, covering an estimated 9.75m radius. Only one can be active at a time. Flashes before disappearing. Enemies can move inside the barrier, negating its effects. Anything can fire outwards from the shield, and nothing can fire through it inwards, not even players or their allies.

Thermal Harpoons
	Type	Utility
	Cooldown	2.5s
	Proc Coefficient	1.0 per Harpoon
	Description	Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
Notes
Unlocked via the Engineer: Zero Sum Challenge. (As Engineer, finish charging the teleporter with zero monsters remaining on the stage.) Pressing the utility key enters painting mode. Hold down the primary key and move the cursor over enemies to paint targets. Up to 4 harpoons can be painted onto 1-4 targets. Each harpoon takes 0.3 seconds to lock onto an enemy. Harpoons do not recharge while in painting mode. Harpoons cannot be fired without a target. Fired harpoons that no longer have a target will redirect to the nearest target. (It is possible to build up a swarm of harpoons by constantly firing at a single target when no other targets are within range.) Painting mode can be cancelled by pressing the secondary key. Even if there were targets acquired, no charges will deplete and no harpoons will fire. Thermal Harpoons are treated as missiles for the Survivors of the Void - DLC Content Pocket I.C.B.M. is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info. Pocket I.C.B.M.Survivors of the Void - DLC Content This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Pocket I.C.B.M. All Missile items deal more damage and fire an additional two missiles. All missile items and equipment fire an additional 2 missiles. Increase missile damage by 0% (+50% per stack) and will receive its effects, tripling the amount of projectiles fired per cast and increasing their damage with more stacks.

Special

TR12 Gauss Auto-Turret
	Type	Special
	Cooldown	30s
	Proc Coefficient	1.0
	Description	Place a turret that inherits all your items. Fires a cannon for 100% damage. Can place up to 2.
Notes
Description clarification: Fires a cannon approximately 3 times per second for 70% of the turret's damage per shot for a total of 210% damage per second. The shots suffer from default projectile falloff. Up to 3 turrets can be placed if the Engineer has a Survivors of the Void - DLC Content Lysate Cell is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info. Lysate CellSurvivors of the Void - DLC Content This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Lysate Cell Add an extra charge of your Special skill. Corrupts all Fuel Cells. Add +1 (+1 per stack) charge of your Special skill. Reduces Special skill cooldown by 33%. Corrupts all Fuel Cells.. Additional stacks of the Lysate Cell do not grant additional turrets.

TR58 Carbonizer Turret
	Type	Special
	Cooldown	30s
	Proc Coefficient	0.6
	Description	Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
Notes
Unlocked via the Engineer: Better With Friends Challenge. (As Engineer, recruit 12 minions at one time.) Description clarification: Fires a laser that ticks approximately 5 times per second for 40% of the turret's damage per shot for a total of 200% damage per second. These turrets follow Engineer and stick close by him. The laser has no damage falloff and inflicts 50% Slow50% Slow (Debuff) Reduces movement speed by 50% (in practice, 33.3%).. The laser has a maximum range that it abruptly stops at, which is slightly longer than the maximum range at which a turret can acquire a target to fire upon. The maximum target range for the TR58 Carbonizer Turrets appear to be noticeably shorter than the TR12 Gauss Auto-Turrets. Up to 3 turrets can be placed if the Engineer has a Survivors of the Void - DLC Content Lysate Cell is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info. Lysate CellSurvivors of the Void - DLC Content This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Lysate Cell Add an extra charge of your Special skill. Corrupts all Fuel Cells. Add +1 (+1 per stack) charge of your Special skill. Reduces Special skill cooldown by 33%. Corrupts all Fuel Cells.. Additional stacks of the Lysate Cell do not grant additional turrets.

Behaviors

For an explanation of how these behaviors are implemented read about Enemy AI. This section only applies when the character is controlled by AI.

Engineer

1. Use primary (paint Harpoons) and strafe: Engineer must be within 60m from the target. This behavior is active for 1.5 seconds and cannot be selected twice in a row. While it uses the primary skill button, it is in the targetting context of Thermal Harpoons.
2. Use secondary (cancel Harpoons) and strafe: this behavior is active for 0.1 seconds and is used in the targetting context of Thermal Harpoons when there is no line of sight to the target or to cancel the painting mode early if all Harpoons have been queued.
3. Use secondary and strafe: Engineer must be within 17m from the target. The character will sprint and the behavior cannot be selected twice in a row.
4. Use special: Engineer must be within 22m from the target and this behavior cannot be selected twice in a row.
5. Use utility (Thermal Harpoons): Engineer must be within 20-60m from the target, have line of sight, and be aiming at it. This behavior is active for 0.1 seconds and cannot be selected twice in a row.
6. Use utility (Bubble Shield): Engineer must be within 12m from the closest ally. Since there is no implicit use of the Special skill with ShadowfadeShadowfade (Utility)Fade away, becoming intangible and gaining +30% movement speed. Heal for 18.2% (+18.2% per stack) of your maximum health. Lasts 3 (+3 per stack) seconds.
   Survivor: Heretic, it will never be used.
7. Use primary and strafe: Engineer must be within 17m from the target. This behavior cannot be selected twice in a row.
8. Use primary and run towards ally: Engineer must be within 8-40m from the closest ally. This behavior cannot be selected twice in a row. The intention of this behavior is to stay close to his turrets, but any ally satisfies the requirement. As such, if the player is near the character while also another monster is nearby, in the absence of other skills being off cooldown the character will toggle between using his primary while strafing the player and staying close to the ally.
9. Use primary and chase: Engineer must be within 20m from the target.
10. Chase: no requirements.

TR12 Gauss Auto-Turret

1. Use primary: the Turret must be within 60m from the target, have line of sight, and be aiming at it. The behavior is active for 1 second and a new target will be selected after this.
2. Search for target: no requirements.

TR58 Carbonizer Turret

1. Return to leader: the Turrent must be more than 110m from its summoner. This behavior is active for 5 seconds and the Turret will sprint for its duration. A new target will be selected after this.
2. Use primary and strafe: the Turret must be within 15m from the target and be aiming at it. This behavior is active for 3 seconds and a new target will be selected after this.
3. Use primary and chase: the Turret must be within 15-25m from the target and be aiming at it. This behavior is active for 1 second and a new target will be selected after this.
4. Return to leader (version 2): the Turret must be more than 6m from its summoner. A new target will be selected after this. Due to the ordering of the previous behavior, this can only be selected if the Turret is within 110m from its leader and more than 25m from any enemy. The Turret will also not sprint during this and the behavior is intended as a soft leash to the leader when all nearby enemies have been killed.
5. Do nothing: the Turret's summoner must still be alive and a new target will be selected after this. This is mostly used when the Turret is near its summoner and there are no enemies to engage. Unlike most other allies and drones which have a fallback behavior to chase down enemies when their summoner is dead, this Turret exhibits no such behavior. As such, it will wander aimlessly and attack enemies if it ever gets within range.

Tips

• Turrets will not receive new items that Engineer picks up after they have been deployed. Their items are only updated upon redeployment.
• Turrets will not inherit Queen's GlandQueen's Gland
  Recruit a Beetle Guard.
  Every 30 seconds, summon a Beetle Guard with bonus 300% damage and 100% health. Can have up to 1 (+1 per stack) Guards at a time., Empathy CoresEmpathy Cores
  Recruit a pair of Solus Probes that gain power with more allies.
  Every 30 seconds, summon two Solus Probes that gain +100% (+100% per stack) damage per ally on your team., Focused ConvergenceFocused Convergence
  Increase the speed of Teleporter charging... BUT reduce the size of the zone.
  Teleporters charge 30% (+30% per stack) faster, but the size of the Teleporter zone is 50% (-50% per stack) smaller., Lepton DaisyLepton Daisy
  Periodically release a healing nova during the Teleporter event and 'Holdout Zones' such as the Void Fields.
  Release a healing nova during the Teleporter event, healing all nearby allies for 50% of their maximum health. Occurs 1 (+1 per stack) times., Halcyon SeedHalcyon Seed
  Summon Aurelionite during the Teleporter event.
  Summon Aurelionite during the teleporter event. It has 100% (+50% per stack) damage and 100% (+100% per stack) health., and WarbannerWarbanner
  Drop a Warbanner on level up or starting the Teleporter event. Grants allies attack and movement speed.
  On level up or starting the Teleporter event, drop a banner that strengthens all allies within 16m (+8m per stack). Raise attack and movement speed by 30%..
• Turrets will inherit Engineer's equipment, as well as any items that modify skill slots:
  • The Visions of HeresyVisions of Heresy
    Replace your Primary Skill with 'Hungering Gaze'.
    Replace your Primary Skill with Hungering Gaze.
    
    Fire a flurry of tracking shards that detonate after a delay, dealing 120% base damage. Hold up to 12 charges (+12 per stack) that reload after 2 seconds (+2 per stack). replace the turrets' primary attack with Hungering GazeHungering Gaze (Primary)Fire a flurry of tracking shards that detonate after a delay, dealing 120% base damage. Hold up to 12 charges (+12 per stack) that reload after 2 seconds (+2 per stack).
    Survivor: Heretic. This increases their raw damage and proc potential significantly, and also replaces Bouncing Grenades with a significantly easier-to-use skill for Engineer himself. Curiously, turrets do not have the standard projectile deviation that players have when firing Hungering Gaze, making them much more effective.
  • The Survivors of the Void - DLC Content
    Shuriken is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. ShurikenSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Shuriken
    Activating your Primary skill also throws a shuriken. Recharges over time.
    Activating your Primary skill also throws a shuriken that deals 400% (+100% per stack) base damage. You can hold up to 3 (+1 per stack) shurikens which all reload over 10 seconds. allows the turrets to throw shurikens for extra damage and range. This also gives them an easy way to activate Kjaro'sKjaro's Band
    High damage hits also blasts enemies with a runic flame tornado. Recharges over time.
    Hits that deal more than 400% damage also blasts enemies with a runic flame tornado, dealing 300% (+300% per stack) TOTAL damage over time. Recharges every 10 seconds., Runald'sRunald's Band
    High damage hits also blasts enemies with runic ice. Recharges over time.
    Hits that deal more than 400% damage also blasts enemies with a runic ice blast, slowing them by 80% for 3s (+3s per stack) and dealing 250% (+250% per stack) TOTAL damage. Recharges every 10 seconds., and Survivors of the Void - DLC Content
    Singularity Band is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Singularity BandsSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Singularity Band
    High damage hits also create unstable black holes. Recharges over time. Corrupts all Runald's and Kjaro's Bands.
    Hits that deal more than 400% damage also fire a black hole that draws enemies within 15m into its center. Lasts 5 seconds before collapsing, dealing 100% (+100% per stack) TOTAL damage. Recharges every 20 seconds. Corrupts all Runald's and Kjaro's Bands., giving them a significant damage boost. However, TR58 Carbonizer Turrets can only fire one Shuriken every time they start firing, significantly limiting its usefulness. This limitation can be circumvented by giving them Visions of HeresyVisions of Heresy
    Replace your Primary Skill with 'Hungering Gaze'.
    Replace your Primary Skill with Hungering Gaze.
    
    Fire a flurry of tracking shards that detonate after a delay, dealing 120% base damage. Hold up to 12 charges (+12 per stack) that reload after 2 seconds (+2 per stack)..
  • The turrets cannot use their inherited equipment unless it has a passive effect (even with Gesture of the DrownedGesture of the Drowned
    Dramatically reduce Equipment cooldown... BUT it automatically activates.
    Reduce Equipment cooldown by 50% (+15% per stack). Forces your Equipment to activate whenever it is off cooldown.). Thus the only equipment that have any effect are the Gnarled Woodsprite15sGnarled Woodsprite
    Heal over time. Activate to send to an ally.
    Gain a Woodsprite follower that heals for 1.5% of your maximum health/second. Can be sent to an ally to heal them for 10% of their maximum health., Fuel ArrayFuel Array
    Looks like it could power something. EXTREMELY unstable... and any Elite Equipment.
• The TR12 Gauss Auto-Turrets and TR58 Carbonizer Turrets have almost identical damage output and proc rate, making on-hit items like the Tri-Tip DaggerTri-Tip Dagger
  Gain +10% chance to bleed enemies on hit.
  10% (+10% per stack) chance to bleed an enemy for 240% base damage. universally good for both.
• The turrets' attacks do not have a specific maximum range. Instead, they have a maximum distance where they will notice and attack an enemy. Notably, the TR58 Carbonizer Turrets have a much shorter maximum range than the TR12 Gauss Auto-Turrets (likely since the Carbonizer Turrets can simply walk closer to their target). This remains true even when their primary attack is replaced by Hungering Gaze.
  • This is particularly problematic for fighting airbone enemies, as TR58 Carbonizer Turrets will rarely target them. Most notably; Survivors of the Void - DLC Content
    Voidling is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. VoidlingSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Voidling
    Diviner of the DeepHP: 2000 (+600 per level)
    Damage: 15 (+3 per level)
    Class: Ranged
    Speed: 45 m/s
    Armor: 20 is always too high for them to target, making them unable to fire at it.
• Acquiring a PurityPurity
  Reduce your skill cooldowns by 2 seconds. You are unlucky.
  All skill cooldowns are reduced by 2 (+1 per stack) seconds. All random effects are rolled +1 (+1 per stack) times for an unfavorable outcome. will reduce the cooldown of Thermal Harpoons (and Hungering Gaze) to 0.5s. When using both Purity and Visions of Heresy, the turrets' raw damage output is dramatically increased to 4 times their normal amount. However, this sacrifices random chance effects like on-hit items in favor of pure damage.
  • Thermal Harpoons can be further augmented with Survivors of the Void - DLC Content
    Pocket I.C.B.M. is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Pocket I.C.B.M.Survivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Pocket I.C.B.M.
    All Missile items deal more damage and fire an additional two missiles.
    All missile items and equipment fire an additional 2 missiles. Increase missile damage by 0% (+50% per stack), leading to a huge barrage of harpoons every few seconds.
• Both Pressure Mines and Spider Mines can be stuck onto the outside surface of the Bubble Shield. CrowbarsCrowbar
  Deal bonus damage to enemies above 90% health.
  Deal +75% (+75% per stack) damage to enemies above 90% health. are highly useful for both mines.
• Placing Spider Mines on elevated positions may allow them to jump onto airborne enemies. They can also be placed onto allies and other Survivors, unlike the immobile Pressure Mines.
• Stacking BandolierBandolier
  Chance on kill to drop an ammo pack that resets all skill cooldowns.
  18% (+10% per stack) chance on kill to drop an ammo pack that resets all skill cooldowns. can lead to constant uptime of Bubble Shield, allowing for good cover. It also proves useful to refresh the turrets' cooldown, giving the player backups in case one of them gets destroyed.
  • Be wary that TR58 Carbonizer Turrets can pick up ammo packs by walking past them. This may not be an issue if they have Visions of Heresy.
• A single Hardlight AfterburnerHardlight Afterburner
  Add 2 extra charges of your Utility skill. Reduce Utility skill cooldown.
  Add +2 (+2 per stack) charges of your Utility skill. Reduces Utility skill cooldown by 33%. allows for nearly 100% uptime of Bubble Shield.
• The Bubble Shield can be used to avoid the Wandering Vagrant'sWandering Vagrant
  Gentle ProtectorHP: 2100 (+630 per level)
  Damage: 6.5 (+1.3 per level)
  Class: Ranged
  Speed: 6 m/s
  Armor: 15 Genesis Supernova.
• Moving the targeting reticle of Thermal Harpoons off of a target resets the lock-on delay, allowing the player to immediately target them again. This means that by swiping the reticle back and forth over a single or multiple targets, the player can lock on much faster.
• Stacking several Bustling FungusBustling Fungus
  Heal all nearby allies after standing still for 1 second.
  After standing still for 1 second, create a zone that heals for 4.5% (+2.25% per stack) of your health every second to all allies within 3m (+1.5m per stack). and placing TR12 Gauss Auto-Turrets beside one another is an effective method for dealing with bosses and high-damage enemies, as it provides a small zone of healing readily defended with the addition of a deployed Bubble Shield. Be wary that melee-oriented monsters may still knock Engineer out of the healing radius or the shielded area.
  • It is not recommended to pick up TranscendenceTranscendence
    Convert all your health into shield. Increase maximum health.
    Convert all but 1 health into regenerating shields. Gain 50% (+25% per stack) maximum health. if using the Bustling Fungus strategy, as Bustling Fungus heals based on a percentage of max HP (which will become 1). If the player wants to use the Transcendence/ AegisAegis
    Healing past full grants you a temporary barrier.
    Healing past full grants you a temporary barrier for 50% (+50% per stack) of the amount you healed. combo, they should use alternative forms of healing such as Leeching SeedLeeching Seed
    Dealing damage heals you.
    Dealing damage heals you for 1 (+1 per stack) health. or Harvester's ScytheHarvester's Scythe
    'Critical Strikes' heal you.
    Gain 5% critical chance. Critical strikes heal for 8 (+4 per stack) health..
  • Acquiring Rejuvenation RackRejuvenation Rack
    Double the strength of healing.
    Heal +100% (+100% per stack) more., N'kuhana's OpinionN'kuhana's Opinion
    Fire haunting skulls when healed.
    Store 100% (+100% per stack) of healing as Soul Energy. After your Soul Energy reaches 10% of your maximum health, fire a skull that deals 250% of your Soul Energy as damage., and as many Bustling FungusBustling Fungus
    Heal all nearby allies after standing still for 1 second.
    After standing still for 1 second, create a zone that heals for 4.5% (+2.25% per stack) of your health every second to all allies within 3m (+1.5m per stack). as possible will allow the stationary TR12 Gauss Auto-Turret to unleash a constant barrage of attacks, as the player and both their turrets will all heal each other (causing N'Kuhana's Opinion to continuously activate).
  • It is not recommended to obtain Survivors of the Void - DLC Content
    Weeping Fungus is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Weeping FungusSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Weeping Fungus
    Heal while sprinting. Corrupts all Bustling Fungi.
    Heals for 2% (+2% per stack) of your health every second while sprinting. Corrupts all Bustling Fungi. if using the TR12 Gauss Auto-Turrets, as the Weeping Fungus will not activate healing on Engineer’s stationary turrets. TR58 Carbonizer Turrets do not count as sprinting unless very far away so will also gain little synergy with the weeping fungus, however it is significantly better for the Engineer himself.
• Red WhipRed Whip
  Move fast out of combat.
  Leaving combat boosts your movement speed by 30% (+30% per stack). is extremely strong on Engineer as his placement of turrets do not deactivate its buff and he is also still able to fully utilise Thermal Harpoons without negating its effects (but not Bubble Shield), effectively being a permanent speed up so long as the engineer never uses his primary or secondary skills.
• TR12 Gauss Auto-Turrets can block each other's shots if they're placed too close to each other. Careful placement of turrets will maximize damage output and the healing generated by Bustling Fungus.
  • A fantastic and consistent placement of turrets is upon the spikes on the Teleporter, as they will be protected from any grounded enemies. There are also some spots on maps where it is possible to place turrets within the terrain, where they will be able to still fire outwards but are unable to be damaged.
• Getting plenty of AoE and/or on-hit items for the player's TR58 Carbonizer Turrets (like Sticky BombSticky Bomb
  Chance on hit to attach a bomb to enemies.
  5% (+5% per stack) chance on hit to attach a bomb to an enemy, detonating for 180% TOTAL damage., UkuleleUkulele
  ...and his music was electric.
  25% chance to fire chain lightning for 80% TOTAL damage on up to 3 (+2 per stack) targets within 20m (+2m per stack)., Will-o'-the-wispWill-o'-the-wisp
  Detonate enemies on kill.
  On killing an enemy, spawn a lava pillar in a 12m (+2.4m per stack) radius for 350% (+280% per stack) base damage., Sentient Meat HookSentient Meat Hook
  Chance to hook all nearby enemies.
  20% (+20% per stack) chance on hit to fire homing hooks at up to 10 (+5 per stack) enemies for 100% TOTAL damage., etc.) as well as some healing items for the early game (like Monster ToothMonster Tooth
  Drop a healing orb on kill.
  Killing an enemy spawns a healing orb that heals for 8 plus an additional 2% (+2% per stack) of maximum health.) will turn them into fairly self-sufficient powerhouses.
• One method to amass large amounts of healing on TR58 Carbonizer Turrets during mid-game or late-game is to stack Harvester's ScytheHarvester's Scythe
  'Critical Strikes' heal you.
  Gain 5% critical chance. Critical strikes heal for 8 (+4 per stack) health. and enough Lens-Maker's GlassesLens-Maker's Glasses
  Gain 10% chance for hits to 'Critically Strike', dealing double damage.
  Your attacks have a 10% (+10% per stack) chance to 'Critically Strike', dealing double damage. to reach guaranteed critical strike chance, preferably with a Predatory InstinctsPredatory Instincts
  'Critical Strikes' increase attack speed. Stacks 3 times.
  Gain 5% critical chance. Critical strikes increase attack speed by 12%. Maximum cap of 36% (+24% per stack) attack speed. for bonus attack speed. The constant, rapid critical strikes will heal the turrets as long as they have targets to attack.
• Due to the aggressive behavior of TR58 Carbonizer Turrets, Focus CrystalsFocus Crystal
  Deal bonus damage to nearby enemies.
  Increase damage to enemies within 13m by 20% (+20% per stack). might be useful when they haphazardly charge into enemies. The Genesis LoopGenesis Loop
  Fire an electric nova at low health.
  Falling below 25% health causes you to explode, dealing 6000% base damage. Recharges every 30 / (2 +1 per stack) seconds . and a few Topaz BroochesTopaz Brooch
  Gain a temporary barrier on kill.
  Gain a temporary barrier on kill for 15 health (+15 per stack). or Monster TeethMonster Tooth
  Drop a healing orb on kill.
  Killing an enemy spawns a healing orb that heals for 8 plus an additional 2% (+2% per stack) of maximum health. can additionally benefit the haphazard behavior of the Carbonizer turrets.
• Both turrets greatly benefit from Dio's Best FriendDio's Best Friend
  Cheat death. Consumed on use.
  Upon death, this item will be consumed and you will return to life with 3 seconds of invulnerability., as the 3 second invincibility time will always reset on newly deployed turrets, as long as Engineer has not used up his own Dio's Best Friend.
  • The Survivors of the Void - DLC Content
    Pluripotent Larva is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Pluripotent LarvaSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Pluripotent Larva
    Get a corrupted extra life. Consumed on use. Corrupts all Dio's Best Friends.
    Upon death, this item will be consumed and you will return to life with 3 seconds of invulnerability, and all of your items that can be corrupted will be. Corrupts all Dio's Best Friends. has a similar effect, although it corrupts all possible items into void items. This is especially pertinent for the aforementioned Bustling Fungus strategy, as they are corrupted into Survivors of the Void - DLC Content
    Weeping Fungus is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Weeping FungusSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.Weeping Fungus
    Heal while sprinting. Corrupts all Bustling Fungi.
    Heals for 2% (+2% per stack) of your health every second while sprinting. Corrupts all Bustling Fungi..
• Engineer does not gain gold when his turrets are hit if they have theSurvivors of the Void - DLC Content
  Roll of Pennies is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Roll of PenniesSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Roll of Pennies
  Gain gold on taking damage.
  Gain 3 (+3 per stack) gold on taking damage from an enemy. Scales over time..
• Both turrets benefit from the Wake of VulturesWake of Vultures
  Temporarily steal the power of slain elites.
  Gain the power of any killed elite monster for 8s (+5s per stack). and have a good chance of stacking multiple Elite buffs at at time.
  • This may backfire upon killing an OverloadingOverloading (Affix Buff)
    Gain the power of an Overloading Elite.Attacks explode after a delay. 50% of health is replaced by shield. or PerfectedPerfected (Affix Buff)
    Gain the power of a Perfected Elite.Cripple on hit. Occasionally fire 5 bomb projectiles at enemies. Gain 35% increased movement speed, and gain 25% max health. All health will be replaced with shields. enemy, as these Elite buffs replace HP with shields, making the aforementioned healing strategies less effective (especially the Bustling Fungus strategy).
• TR12 Gauss Auto-Turrets can be used to press the pressure plates on Abandoned Aqueduct.
  • Though TR58 Carbonizer Turrets can activate them as well, these turrets are liable to walk off the pressure plates.
• A very risky but rewarding strategy is to acquire the Fuel ArrayFuel Array
  Looks like it could power something. EXTREMELY unstable... at the start of a run. Both turrets get their own Fuel Array and will explode when sufficiently damaged, dealing huge damage to whatever was attacking them. This requires the player to dodge well enough to avoid exploding themself, however. This strategy is much more viable in multiplayer, as dying from the Fuel Array will not end the run.
• Having a Survivors of the Void - DLC Content
  Lysate Cell is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Lysate CellSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Lysate Cell
  Add an extra charge of your Special skill. Corrupts all Fuel Cells.
  Add +1 (+1 per stack) charge of your Special skill. Reduces Special skill cooldown by 33%. Corrupts all Fuel Cells. lets Engineer deploy 3 turrets at a time, instead of 2. Stacking more Lysate Cells will not further increase the number of turrets that can be deployed, but still provides extra charges. This comes at the cost of Fuel Cells'Fuel Cell
  Hold an additional equipment charge. Reduce equipment cooldown.
  Hold an additional equipment charge (+1 per stack). Reduce equipment cooldown by 15% (+15% per stack). equipment synergy, however.
• Players should be aware that their turrets' kills don't count toward the user's InfusionInfusion
  Killing an enemy permanently increases your maximum health, up to 100.
  Killing an enemy increases your health permanently by 1 (+1 per stack), up to a maximum of 100 (+100 per stack) health. HP boost. Instead, their boost from the Infusion is always set to 0 when they are deployed, requiring them to each kill 100 enemies to receive the full boost. As a result, the Infusion is generally only useful for Engineer himself.
• The Survivors of the Void - DLC Content
  Spare Drone Parts is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Spare Drone PartsSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Spare Drone Parts
  Your drones fire faster, have less cooldowns, shoot missiles, and gain a bonus chaingun.
  Gain Col. Droneman. Drones gain +50% (+50% per stack) attack speed and cooldown reduction. Drones gain 10% chance to fire a missile on hit, dealing 300% TOTAL damage. Drones gain an automatic chain gun that deals 6x100% damage, bouncing to 2 enemies. will dramatically empower the turrets, giving them more attack speed, reduced cooldowns (relevant for Hungering Gaze), an extra chain gun attack, and a bonus attack akin to an AtG Missile Mk. 1AtG Missile Mk. 1
  Chance to fire a missile.
  10% chance to fire a missile that deals 300% (+300% per stack) TOTAL damage.. However, they will not summon their own Cols. Droneman.
• The final bossMithrix
  King of NothingHP: 1000 (+300 per level)
  Damage: 16 (+3.2 per level)
  Class: Melee / Ranged
  Speed: 15 m/s
  Armor: 20 can be cheesed by placing turrets right outside the one-way barrier surrounding the arena. The final bossMithrix
  King of NothingHP: 1000 (+300 per level)
  Damage: 16 (+3.2 per level)
  Class: Melee / Ranged
  Speed: 15 m/s
  Armor: 20 will aggro onto the turrets, but cannot damage them due to the barrier.
  • The boss (and most AI entities in the game) only switches targets whenever their current one is dead or they receive damage from a different entity, so as long as the Engineer does not attack Mithrix directly, aggro will not swap between them and their turrets.

Lore

“The future is now! Cybernetic enhancements – buy them cheap and become the person you’ve always dreamed of being!” 

Cybernetic enhancements were all the rage these days, especially since they were made available for public use. Initially, only military and commercial projects could license the procedures necessary to install cybernetic implants. But those days were long gone, and the concept of “the new human” was taking the galaxy by storm. 

Of course, with any movement, there was backlash.  What of the sanctity of the human body? What about taking pride in your biology? Such arguments were normally laughed off. “Get with the times,” people would say. But one man among many stood out, gaining public attention and starting a counter movement of anti-cybernetics.

The man postulated that mankind was walking on a tight rope – when do the cybernetics end, and where does the human begin? Will mankind end up as a machine species, or will we use our new tech to only better ourselves - without losing sight of what makes us human? The words of this man echoed across the galaxy, leaving a trail of revolution in its wake.

Bugs

• Thermal Harpoons will not deactivate Red WhipRed Whip
  Move fast out of combat.
  Leaving combat boosts your movement speed by 30% (+30% per stack)., bizarrely however Bubble Shield will despite the former being a pure offensive skill and the shield's pure defensive status.
• Unlike all other ally generating items,Survivors of the Void - DLC Content
  Newly Hatched Zoea is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Newly Hatched ZoeaSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Newly Hatched Zoea
  Periodically recruit allies from the Void. Corrupts all yellow items.
  Every 60 (-50% per stack) seconds, gain a random Void ally. Can have up to 1 (+1 per stack) allies at a time. Corrupts all yellow items. is not blacklisted for turrets, causing them to spawn more void allies every time they are placed down.
• When playing as a client, painting a target with Thermal Harpoons will cause Hungering Gaze used by the Engineer to aggressively try to home on to the first target marked, curving at extreme angles from any range. This effect will linger until the target dies.
• TR58 Carbonizer TurretsTR58 Carbonizer Turret (Special)Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
  Survivor: Engineer are unable to properly utilise Survivors of the Void - DLC Content
  Shuriken is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. ShurikenSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Shuriken
  Activating your Primary skill also throws a shuriken. Recharges over time.
  Activating your Primary skill also throws a shuriken that deals 400% (+100% per stack) base damage. You can hold up to 3 (+1 per stack) shurikens which all reload over 10 seconds., they will fire a single shot upon firing their laser but will not fire again until they stop attacking and start again. Due to their behaviour this usually makes them unable to fire more than one shuriken at any single target unless they obtain Visions of HeresyVisions of Heresy
  Replace your Primary Skill with 'Hungering Gaze'.
  Replace your Primary Skill with Hungering Gaze.
  
  Fire a flurry of tracking shards that detonate after a delay, dealing 120% base damage. Hold up to 12 charges (+12 per stack) that reload after 2 seconds (+2 per stack)..

Version History

Anniversary Update

• Major Content
  • Added New Lore Entry: Engineer
• Gameplay Changes
  • Both Gauss Auto-TurretTR12 Gauss Auto-Turret (Special)Place a turret that inherits all your items. Fires a cannon for 100% damage. Can place up to 2.
    Survivor: Engineer and Carbonizer TurretTR58 Carbonizer Turret (Special)Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
    Survivor: Engineer now also inherit your equipment. They won’t activate it, but they will hold it.
  • GrenadesBouncing Grenades (Primary)Charge up to 8 grenades that deal 100% damage each.
    Survivor: Engineer now have slight anti-gravity.
• Bug Fixes
  • Engi GrenadesBouncing Grenades (Primary)Charge up to 8 grenades that deal 100% damage each.
    Survivor: Engineer now properly play impact sounds

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PC Patch v1.0.1.1 (Build ID No.5440050)

• Gameplay Changes
  • SPOILERS! Final Boss, Last Phase. SPOILERS!
    • Item Steal
      • Now steals items from minions, like Engineer Turrets. He won’t use the items he takes from minions.
• Bug Fixes
  • Fix Gorag’s Opus45sGorag's Opus
    You and all your allies enter a frenzy.
    All allies enter a frenzy for 7 seconds. Increases movement speed by 50% and attack speed by 100%. not working on Engi

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PC Early Access Patch (Build ID No.4892828)

• Bug Fixes
  • Fix Focus ConvergenceFocused Convergence
    Increase the speed of Teleporter charging... BUT reduce the size of the zone.
    Teleporters charge 30% (+30% per stack) faster, but the size of the Teleporter zone is 50% (-50% per stack) smaller. from stacking with Engineer Turrets
  • Fix an issue that caused the PressurePressure Mines (Secondary)Place a two-stage mine that deals 300% damage, or 900% damage if fully armed. Can place up to 4.
    Survivor: Engineer/ Spider MinesSpider Mines (Secondary)Place a robot mine that deals 600% damage when an enemy walks nearby. Can place up to 4.
    Survivor: Engineer cooldown to restart when opening the Thermal HarpoonsThermal Harpoons (Utility)Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
    Survivor: Engineer target menu
  • Fix the Hungering GazeHungering Gaze (Primary)Fire a flurry of tracking shards that detonate after a delay, dealing 120% base damage. Hold up to 12 charges (+12 per stack) that reload after 2 seconds (+2 per stack).
    Survivor: Heretic being reset by Thermal HarpoonsThermal Harpoons (Utility)Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
    Survivor: Engineer

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Early Access Artifacts Content Update

• Major Content
  • Added New Skill Variant: Engineer UtilityThermal Harpoons (Utility)Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
    Survivor: Engineer
    • Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
  • Added New Skin: Engineer Skin
  • Added New Engineer Challenge: Zero SumThermal Harpoons (Utility)Enter target painting mode to launch heat-seeking harpoons that deal 500% damage each. Can store up to 4.
    Survivor: Engineer
  • Added New Engineer Challenge: Engineer Mastery
• Gameplay Changes
  • Add 1 new Skill Variant
  • Add 1 new Skin
  • 🌧 Update animations on falling, landing, sprinting, walking and jumping
  • Bubble ShieldBubble Shield (Utility)Place an impenetrable shield that blocks all incoming damage.
    Survivor: Engineer
    • Increase shield warning flash by 0.5 second and tweak visuals to be softer
    • Now displays selected mine and turret variants in the Character Select screen
• Sound & Music
  • Fix Engineer Bouncing GrenadesBouncing Grenades (Primary)Charge up to 8 grenades that deal 100% damage each.
    Survivor: Engineer firing SFX and effects not playing for anyone but the client playing as the Engineer

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Early Access Hidden Realms Content Update

• Bug Fixes
  • Update Engineer Turret not destroying itself for clients

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PC Early Access Patch (Build ID No.4233443)

• Gameplay Changes
  • Carbonizer TurretTR58 Carbonizer Turret (Special)Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
    Survivor: Engineer
    • Walk Speed: 6 ⇒ 7
    • Now scales laser tick rate with attack

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Early Access 'Skills 2.0' Content Update

• Major Content and Changes
  • Added New Skill Variant: Engineer SecondarySpider Mines (Secondary)Place a robot mine that deals 600% damage when an enemy walks nearby. Can place up to 4.
    Survivor: Engineer
    • Place a robot mine that deals 600% damage when an enemy walks nearby. Can place up to 4.
  • Added New Skill Variant: Engineer SpecialTR58 Carbonizer Turret (Special)Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
    Survivor: Engineer
    • Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
  • Added New Class Challenge: Engineer: Better With FriendsTR58 Carbonizer Turret (Special)Place a mobile turret that inherits all your items. Fires a laser for 200% damage per second that slows enemies. Can place up to 2.
    Survivor: Engineer
  • Added New Class Challenge: 100% CalculatedSpider Mines (Secondary)Place a robot mine that deals 600% damage when an enemy walks nearby. Can place up to 4.
    Survivor: Engineer
• Gameplay Changes
  • 🌧︎ Bubble ShieldBubble Shield (Utility)Place an impenetrable shield that blocks all incoming damage.
    Survivor: Engineer now flashes before it expires
  • 🌧︎ Update Pressure MinesPressure Mines (Secondary)Place a two-stage mine that deals 300% damage, or 900% damage if fully armed. Can place up to 4.
    Survivor: Engineer:
    • 🌧︎ Now “arms” over time to 900% damage and an increased radius
      • Players (including us) were mostly just using Engineer's mines as somewhat underwhelming grenades as soon as they came off cooldown. This change puts more power in strategic placement and reduces how often the skill needs to be used for it to be effective.
    • 🌧︎ Now scales max available mines with max secondary stock
    • Max Stock 10 ⇒ 4
  • Add 2 new skill variants

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Early Access Scorched Acres Content Update

• Gameplay Changes
  • Turret Base Damage: 19 ⇒ 16
• Music & SFX
  • Assign Engineer Turret’s proper attack sound
  • Add Engineer sounds to Bubble ShieldBubble Shield (Utility)Place an impenetrable shield that blocks all incoming damage.
    Survivor: Engineer
• Bug Fixes
  • ☂ Fix Engineer sprint sounds not playing first time sprinting on a stage

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Early Access Patch (Build ID No.3731106)

• Bug Fixes
  • [Community Found] Clean up EngineerEngineerThe Engineer is a unique class that requires planning and positioning to be successful.
    Class: Ranged
    HP: 130 (+39 per level)
    Damage: 14 (+2.8 per level)
    Armor: 0
    Umbra: Fortification Expert Turret skill drivers to fix their AI not working sometimes
  • [Community Found] Fix EngiEngineerThe Engineer is a unique class that requires planning and positioning to be successful.
    Class: Ranged
    HP: 130 (+39 per level)
    Damage: 14 (+2.8 per level)
    Armor: 0
    Umbra: Fortification Expert being able to sometimes get more than 2 turrets
  • [Community Found] Remove typo in EngineerEngineerThe Engineer is a unique class that requires planning and positioning to be successful.
    Class: Ranged
    HP: 130 (+39 per level)
    Damage: 14 (+2.8 per level)
    Armor: 0
    Umbra: Fortification Expert description

Gallery

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  32 EOD Tech

Trivia

• The Engineer was one of the playable characters in the first Risk of Rain.
• Prior to the Anniversary Update, the Engineer's ending phrase was "...and so he left, more steel and circuit than man.", reiterating his ending message from Risk of Rain.