Engineer

The is a playable character. He wears an orange suit with saffron outlines like some engineers do. He has a head that appears to be a bubbling water container and is carrying a machine behind him that emits puffs of smoke periodically.
Once unlocked, he can also be encountered during a run as an NPC. Upon interaction, he will give the player a random attachment to the weapon being currently held.
*He reacts differently if the player is carrying Red/Legendary or Magenta/Mythical weapons, or if they are empty-handed.
==Unlock & upgrade==
The can be unlocked at the cost of $1.00 or equal value in other currencies.
Each upgrade changes the stats slightly. 
#+1 HP - cost: 500 gems
#+1 Armor - cost: 1,000 gems
#+20 Energy - cost: 1,500 gems
#-2s Skill Cooldown - cost: 2,000 gems
#Skill Upgrade - cost: 2,500 gems
#Fire buff - cost: 5,000 gems
#Enhance Starting Weapon - cost: 8,000 gems
#Portable Time Travel Device (for Time Traveler's Gadget) - cost: 10,000 gems
==Statistics==
 has almost the same stats as the Alchemist but with 3 melee damage instead of 4. He will also fully heal any individual, permanent armor mounts when going through a portal if he has them equipped.
==Alternate Skins==
 currently has 20 alternate skins, which include:
*9 gem skins
*8 paid skins
*1 fragment skin
*1 season coin skin
*1 fish chip skin
==Skill 1 - Gun Turret==
;Basic 
:Summon a gun turret to provide fire support. Up to 3 turrets can exist at the same time.
* deploys a turret at his standing point. The turret cannot move.
**The gun turret has 12 health. It will be destroyed after 10 seconds or after its health is depleted.
**The turret will fire bursts of 12 bullets at the nearest enemy over 2 seconds, and then pause for 1 second before firing the next burst.
**Fire rate modifiers such as , Fire Rate Buff, or Coffee only affect the turret attack speed during the 2-second burst fire. They cannot shorten the 1 second pause between bursts.
**Each bullet deals 2 damage, with 0 critical chance () and 8 inaccuracy ().
**The turret can find targets behind breakable crates, but not unbreakable objects.
**There can be up to 3 turrets at a time. If another is built, the oldest one is instantly destroyed.
*This skill has a cooldown of 9 (7) seconds.
*Gun Turret can be further enhanced when paired with the following buffs:
** - Makes turrets fire 18 bullets over 3 seconds (instead of 12 bullets over 2 seconds).
** - Increase turret's damage by 1, and increases its fire rate.
** - Reuses missing bullets.
;Skill Upgrade
:Gun turrets shoot out missiles that have a chance to burn enemies. 
*For every 1 second, the turret also shoots a homing missile that flies slower than the bullet.
*This missile can create a small explosion that deals 4 damage and can cause Burn.
;Mentor Upgrade
:Turrets' missiles now become rockets. 
*Fires bigger missiles with a much larger blast radius. The rockets are launched at higher velocity but lose their homing effect.
*Turrets emit particle effects similar to a champion but in dark blue. This only serves as cosmetic.
==Skill 2 - Armor Mount==
;How to unlock
:Pay $1.99 to unlock this skill.
;Basics
:Temporarily equipped with an armor mount. (Applies to solo mode only) You're equipped with the armor mount parked in robotic facility.
*Despite the description, it is possible to be equipped with the armor mount parked in the Robotics Facility in multiplayer mode.
*Equips the with an Armor Mount that has 8 Health. The mount is the same as the one currently in the Robotics Facility, or a Prototype Armor if there isn't any.
**Defense is equal to that of the equipped mount, which is also affected by Badass Mode's 1 Defense increase.
***Prototype Armor, the default one for this skill, has 1 Defense (2 in Badass).
**The armor mount loses 1 health per second.
**The armor mount will be destroyed if all of its HP is depleted.
**It is impossible to dismount while the skill is active.
**If this skill summons a Prototype Armor, the "Self Destruct" attack can only deal 50 damage as opposed to the regular 199 damage.
**The armor mount has no walking speed penalties unlike regular armor.
**The armor mount does not have an upgraded weapon, nor will it ever have one.
* - Increases the armor mount's HP by 50% (rounded down), however, the increase is based on the Mount used, not on the skill's HP itself.
Mount 	HP Increase
Prototype Armor, Swift Shuttle Jet, Floating 51	3
Apocalypse, Dragon Dance Armor 	4
Iron Fist 	5
C5H6O5, Garboil Warmech, Raid Battlesuit, Plume	6
Guerrilla Combatant 	7
WiFi Booster 	8
*Robo affects this skill, giving the armor mount +2 HP.
*This skill has a cooldown of 14 (12) seconds, and it starts after the armor is destroyed.
;Skill Upgrade
:Armor mount lasts longer.
*The summoned armor mount will have 12 Health instead of 8.
;Mentor Upgrade
:Armor mount explodes when destroyed, dealing 60 damage.
*All mounts summoned by the skill will produce an explosion when destroyed, which does 60 damage.
==Skill 3 - Interceptor==
;How to unlock
:Pay $1.99 to unlock this skill.
;Basics 
:Build a laser turret to intercept enemy bullets, or attack enemies if no bullet is in its range. 
*Similarly to his Gun Turret ability, upon activation, the deploys a stationary turret at his standing point. 
**Interceptor has 15 health. It will be destroyed after 10 seconds or after its health is depleted.
**The turret appears to prioritize destroying projectiles over attacking enemies.
**When enemies' projectiles are within a 6-tile radius of the turret, it rapidly fires small lasers to destroy them at the rate of 5 lasers per second.
**The turret also fires lasers that deal 3 damage at enemies within a 7-tile radius, with approximately 0.75 seconds of cooldown before it can fire again.
**Unlike most other laser weapons, the turret's lasers only reach far enough to hit their target and do not travel any further.
**Unlike the Gun Turret, the Interceptor has an indefinite limit of turrets. The only limitation is their expiration time of 10 seconds.
*This skill has a cooldown of 9 (7) seconds.
*Interceptor can be further enhanced when paired with the following buffs:
** - Increases laser's damage by 1.
** - Reflects intercepted projectiles. 
** - Increase turret's laser damage by 1, and increases its fire rate(?).
;Skill Upgrade
:Interception range increases.
*Increases the attacking and intercepting range by 1 tile.
;Mentor Upgrade
:The interceptor can shoot 2 lasers at the same time. 
*Each turret can shoot 2 laser beams.
==Quotes== 
===Interaction in the Living Room===
*"Fixing my turret..."
*"I can fix my turret!"
*"You see my brother in the dungeon?"
: As Purple Gold Red Gourd:
*"Shh... Quiet. Sage of Taoism can't know about this."
*"I was sneaking out for fun!"
*"We kinda snuck out together!"
*"Wait... Where's Suet Jade Flask?"
*"Chillax, Sage of Taosim would come to our rescue if anything happens."
: As Aquarius:
*"I'm an aristocrat, no doubt about that."
*"Even though I'm a highborn gentleman, I love grabbing street food with my folks, like fried sweet potato leaves!"
*"To be frank, Duke Grey Tea is nothing compared to bubble tea with soda water..."
*"Hey! I'm not overweight!! Definitely not!!!"
*"Don't worry, we nobles are open-minded, and I can totally handle your inapppropriate words.."
: As Hua Tuo - Yuanhua:
*"I heard Cao Cao is experiencing another migraine. Guess I should head home and lay low for a bit..."
*"Well your illness is pretty complicated. Let me have a cup of tea first."
*"Rest assured, my medicines are like Zhuge Liang's fire attack-catching your illness off guard!"
*"My treatments are free of charge."
:When interacted in the Living Room during Chinese New Year update, prior to v2.5.0: 
*"Don't feel like fixing my turret during the holidays"
===During a run as an NPC===
*"My turret is destroyed by monsters!"
*"Take the part. May come in handy."
*"I need to recycle all these parts." (If the player is giving a weapon incapable of using Attachments)
:Prior to v2.8.0:
*"Gotta find some gears to fix my turret"
*'"This is for you, might be useful someday"
==Trivia==
*Before Update 1.3.0, the buff gained at level 6 was Pet Buff.
**This was later replaced by Fire Buff, and the Pet Buff was given to the Druid.
*During Update 1.5.0, the himself and the turret were seen wearing Christmas caps.
*During Update 1.7.0, the turret also had an aiming line. However, it was glitched that it always targeted in a fixed direction.
*Since Update 1.8.2, the can repair the Damaged Robot for 20 Batteries and 20 Parts. Once repaired, the Robot will be permanently unlocked as a playable character.
*Before Update 1.8.2, the skill icon of Gun Turret featured a green turret instead.
*Before Update 2.0.5, the could only summon one turret at a time. Activating the skill while the turret is still active would terminate it, and the skill's CD would not start before the turret was destroyed.
*In some Chinese versions of 2.0.5, the "Musician" skin is known as "投币式乐队机器人#1" ("Musician Coinbot #1").
**A glitched version of this skin carries his usual pump machine instead of a guitar.
*The Armor Mount skill was added in Update 2.2.0.
**Since this update, can repair the Wrecked Motorcycle for 15 Parts, 15 Ironstone and 10 Organic Matter.
*Interceptor was added in Update 2.7.0.
*The bullets of the Gun Turret skill were somehow not affected by the Weapon Boost, while the missiles were. But after an unknown Update, possibly Update 2.7.0, this issue was fixed.
*Before Update 2.8.0, the would give the player a random weapon when interacted with during a run, the quotes were also different.
**The weapon given was equal to a blue chest in the same floor.
*Before Update 2.8.7, the armor mount was fixed to Prototype Armor in Multiplayer, even if other armor was present in the Robotics Facility.
*In Update 3.0.0, 's default, Hello World and Ruler Huang Tian skins received a retexture.
**In Update 3.1.0, 's Heavily Modded, Prototype, Sky Lantern, Poached Egg, Musician, Floating Laser UFO Skin and Fire God skins received a retexture.
*The turret is a reference to the "Engineer" from Team Fortress 2, who is also able to construct a Sentry Gun.
*The skin of the wrecked turret in the Living Room changes depending on the skin assigned to the last game.
**This does not apply to the NPC in the dungeon.
*Turrets spawned by always face to the right if there are no targets present, regardless of the way is facing. This is true for both the gun turret and laser turret.
*The is one of few characters whose head does not bob to music.
**It could be inferred that his "head" (the container resembling that of the Water Dispenser) is just a helmet similar to those of astronauts, and that his actual head is the water inside.
*The quote "You see my brother in the dungeon?" is a reference to the Water Dispenser.
**In the playerbase, the is often teased for this, as his head resembles the container of the Water Dispenser.
**'s starter weapon is also called H2O.
**Engineer also appears as the icon for the Firefighter achievement.
__NOEDITSECTION__
ru:Инженер
zh-tw:工程師
pt-br:Engenheiro
es:Ingeniero
Category:Characters