Engineering (LWR)

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In General

The Engineering Bay houses the engineering team, headed by Dr. Shen.

Build/Buy Items

Here you can build or purchase items that you have the resources for.

Item Production and Foundry Project Speed

Each engineer increases the item production and foundry project speed through a complex formula (this is a rough approximation):

Time = Base Time * 0.5 * [1 + (Optimal Engineers / Actual Engineers) ^ (0.06 * Optimal Engineers)] / (1.6 ^ Number of Workshops) 

As long as the the number of available engineers is much lower than the recommended value, recruiting an additional engineer will significantly reduce the completion time. As the number of engineers approaches or exceeds the recommended number, then adding additional engineers has diminishing returns, i.e. each new engineer reduces time by a smaller and smaller amount.

Note that Base Time to build each item in hours is it's build time * the number of engineers required * 72.

Item Fabrication Capacity

The Engineering Bay grants an item fabrication capacity of 2. This means you can produce a maximum of 2 different item orders simultaneously. All other item orders will be queued to start once they finish. The item fabrication capacity is increased by 1 for every workshop.

Rushing

Rushing the production of an item reduces the base build time by 80%. The cost is 40% more resources and 5 meld.

Due to number of engineers affecting actual build times, when rush building, the final build time will likely not decrease by a full 80% (Click here for more info: Scientists and Engineers)

Build Facilities

By selecting "Build Facilities," a listing of the new facilities available for construction will be provided, along with the associated resource costs and time required for construction. There is no limit on the amount of excavation or construction that can be done at once.

Excavations cannot be rushed, and take 8 days to complete.

Rushing

Rushing the production of a facility reduces the base build time by 80%. The cost is 40% more resources and 10 meld.

The Foundry

SHIV-Specific Upgrades

Name	Credit type	Effects	Prerequisites		Cost
											Other
SHIV Advancements I	Weapons	Grants SHIVs Repair Servos and Lock N' Load. Also unlocks the Anti-Armor Module.	15	Alien Weaponry	§40	0	50	0	50	70	6x Drone Wrecks
SHIV Advancements II	-	Grants SHIVs Damage Control and Shredder.	30	Cyberdisc Autopsy	§400	135	25	10	80	210	2x Drone Wreck, 2x Cyberdisc Wreck

General Mechanical Unit Upgrades

Name	Credit type	Effects	Prerequisites		Cost
											Other
Advanced Repair	Cybernetics	Reduces aircraft, MEC, SHIV, and item repair times by 35%.	45	Heavy Floater Autopsy	§300	190	0	0	40	210	6x Heavy Floater Corpse
Advanced Servomotors	Cybernetics	All SHIVs gain Sprinter. Unlocks Walker Servos for soldiers and Elerium Turbos for SHIVs.	20	Mechtoid Autopsy	§10	320	60	0	0	100	6x Mechtoid Core
Heavy Shells	Cybernetics	All MECs gain HEAT Warheads.	45	Heavy Floater Interrogation	§100	480	5	0	0	100	5x Heavy Floater Corpse
MEC Warfare Systems	Cybernetics	Vital for further MEC equipment development; prerequisite for the production of many advanced MEC weapons, suits, and items.	20	Alien Biocybernetics	§20	0	10	0	0	30	2x Drone Wreck
Mechanized Defenses	Armor	Unlocks the Alloy Carbide Plating item (and with Advanced Power Armor, the Core Plating item) for MECs and SHIVs to increase their defensive capabilities.	30	Advanced Body Armor	§10	10	15	0	10	100	2x Cyberdisc Wreck
Shaped Armor	Armor	Increases HP of mechanized units (SHIV, MEC) by 3. Grants +10 penetration to the KSM.	35	Berserker Autopsy	§20	150	0	20	40	210	4x Berserker Corpse

General Weapon Upgrades

Name	Credit type	Effects	Prerequisites		Cost
											Other
Alien Grenades	-	Allows the use of Alien Grenades and grants AP grenades +1 damage and HE grenades +2 damage.	30	Muton Autopsy	§300	20	75	30	30	140	16x Muton Corpse
Ammo Conservation	Weapons	Increases the ammo capacity of shotguns (primary only), carbines, assault rifles, SMGs, and battle rifles by 1 shot/burst.	60	Muton Elite Autopsy	§150	800	425	0	20	140	10x Muton Elite Corpse
Beam Strengthening	Weapons	Grants +1 to critical hit damage with all primary laser and pulse weapons.	45	Experimental Warfare	§350	90	110	60	15	140	6x UFO Power Source
Condensed Plasma	Plasma Weapons Weapons	Increases the damage of explosives by 1. Allows production of Plasma Grenades and Plasma Stellerators.	90	Light Plasma Weapons	§200	0	80	180	0	550	5x Muton Elite Corpse
Enhanced Ballistics	Weapons	Allows production of Alloy-Jacketed Rounds.	10	Alien Materials	§20	10	15	0	0	70	-
Enhanced Lasers	Laser Weapons Weapons	Allows production of Enhanced Beam Optics.	10	Beam Lasers	§20	0	45	10	0	70	-
Jellied Elerium	Cybernetics	Increases the damage of explosives by 1, increases flamethrower panic rolls to 80 (from 50), and unlocks the Incinerator Module.	45	Elerium	§100	0	160	90	20	100	10x Chryssalid Carcass
Quenchguns	Gauss Weapons Weapons	Grants +1 penetration to all primary ballistic and gauss weapons, and increases the weapon damage of the sawed-off shotgun to 9 (from 6).	35	Advanced Gauss Weapons	§250	160	130	20	10	140	9x Muton Corpse

General Equipment Upgrades

Name	Credit type	Effects	Prerequisites		Cost
											Other
Advanced Flight	Aerospace	Increases the fuel capacity for flight-capable units (flying armors and Hover SHIV) by 50%.	50	Antigrav Systems	§500	80	0	40	0	140	4x Drone Wreck, 4x Heavy Floater Corpse, 8x Floater Corpse
Elerium Batteries	-	Increases the stun rate of the Stun Rifle, and grants an additional charge to the Stun Rifle, Arc Rifle, and the Motion Tracker.	30	Alien Power Systems	§100	30	45	50	0	140	16x Drone Wreck
Improved Medikit	Cybernetics	Increases the max HP medikits can heal by 2.	12	Muton Elite Autopsy	§350	0	0	0	50	70	4x Muton Elite Corpse
New Combat Systems	-	Unlocks an array of new gear options in combination with other technologies and projects.	30	Experimental Warfare	§200	30	60	20	0	140	4x Thin Man Corpse
Psi Warfare Systems	Psionics	Unlocks an assortment of psionic special equipment.	20	Xenopsionics	§200	0	15	20	40	140	16x Sectoid Corpse
Tactical Rigging	Armor	Grants one extra equipment slot to biosoldiers.	20	Muton Interrogation	§50	10	120	80	30	70	4x Muton Corpse

Pistol Upgrades

These upgrades apply to most pistols and machine pistols.

Name	Credit type	Effects	Prerequisites		Cost
											Other
High-Capacity Pistols	Weapons	Grants 1 additional ammo to all non-electric pistols.	10	Alien Weaponry	§100	25	50	0	0	70	-
Rail Pistols	Gauss Weapons Weapons	Grants 10 aim to all pistols.	20	Gauss Weapons	§150	10	40	0	0	100	2x Seeker Wreck
Reflex Pistols	Plasma Weapons Weapons	Grants +35% weapon damage to all pistols.	35	Compact Plasma Weapons	§250	30	45	30	0	140	6x Heavy Floater Corpse

Material Recovery

Name	Credit type	Effects	Prerequisites		Cost
											Other
Advanced Scavenging	-	Allows for the use of secondary scavenging teams on UFO missions.	15	Alien Materials	§150	0	0	0	0	100	-
Improved Salvage	-	Increases weapon fragment recovery from missions and destroyed UFOs by 20%.	20	Alien Materials	§800	0	15	0	50	140	20x Thin Man Corpse
Alien Metallurgy	-	Increases alien alloy recovery from missions and destroyed UFOs by 20%.	30	Alien Materials	§800	10	0	0	50	140	10x Drone Wreck
Alien Nucleonics	-	Increases elerium recovery from missions and destroyed UFOs by 20%.	45	Alien Materials	§800	0	0	10	50	140	24x Sectoid Corpse

Base Upgrades

Name	Credit type	Effects	Prerequisites		Cost
											Other
Advanced Surgery	Cybernetics	Decreases biosoldier wound times by 25%.	45	Alien Biocybernetics	§600	0	0	0	0	210	4x Alien Stasis Tank, 4x Alien Surgery
Grey Market	-	Unlocks the Grey Market.	10	-	§10	10	5	10	10	300	1x Sectoid Captive
XCOM Security I	-	Creates patrol routes and trains XCOM to defend the base exterior against possible intruders. Any alien that makes it through these patrols will have a 50% chance to lose an average of x% of their HP where x is the number of soldiers that were on patrol.	25	Beam Lasers	§200	0	0	0	0	30	-
XCOM Security II	-	Increases the training and defensive entrenchment of the interior and exterior security patrols. Any alien that makes it through these patrols will have a 100% chance to lose an average of x% of their HP where x is the number of soldiers that were on patrol.	25	Improved Body Armor XCOM Security I	§600	0	0	0	0	30	-

Aerospace Improvements

Name	Credit type	Effects	Prerequisites		Cost
											Other
Aircraft Boosters	Aerospace Laser Weapons	Allows production of one-time 'boosters' for interception.	10	Alien Materials	§50	0	10	0	10	70	2x Drone Wreck
Armored Fighters	Aerospace Armor	Increases interceptor and firestorm HP by 30%.	30	Advanced Aerospace Concepts	§450	120	50	0	25	140	16x Floater Corpse
Cooling Coils	Aerospace	Increases rate of fire of all air weapons by 30%.	35	Heavy Floater Interrogation	§80	320	110	0	0	140	4x Cyberdisc Wreck 4x UFO Flight Computer
Elerium Afterburners	Aerospace	Increases aircraft battle speed by 10.	45	Alien Propulsion	§200	60	0	130	0	140	26x UFO Power Source
Improved Avionics	Aerospace	Increases aircraft aim by 10.	40	Advanced Aerospace Concepts	§400	300	60	0	0	140	6x UFO Flight Computer
Phoenix Coilguns	Gauss Weapons	Upgrades phoenix cannon penetration to Tier 3 (from Tier 2).	15	Gauss Weapons	§40	80	230	0	0	70	12x UFO Power Source
Stealth Satellites	-	Decreases the success chance of unabetted hunts to 50% (from 100%).	65	Stealth Systems	§50	110	0	10	0	80	2x UFO Flight Computer
Supercapacitors	Laser Weapons	Increases laser cannon damage from 400 to 800. Unlocks Reaper Ammo.	50	Advanced Pulse Lasers	§200	70	40	40	30	50	8x UFO Power Source
UFO Countermeasures	Aerospace	Increases aircraft dodge chance by 10%.	50	Seeker Autopsy	§150	40	75	10	0	140	12x Seeker Wreck 12x UFO Flight Computer
UFO Scanners	-	Increase interception time by 10%. Adds UFO HP estimates to the interception screen.	10	-	§50	0	5	0	0	50	2x UFO Flight Computer
UFO Tracking	Aerospace	Increases interception time by 20%. Increases the chance of aircraft detecting UFOs without satellites present (mimicking patrol behavior) from 7% per aircraft to 14% per aircraft.	40	Alien Power Systems	§40	10	0	10	0	280	2x UFO Flight Computer

Repair Bay

Items can be damaged when a unit is wounded during a battle.

They require 20% of their original build time and 10% of their original build cost to repair. Repairing does not affect item fabrication capacity.

Augment Soldiers

Augment up to 1 soldier at a time to become a MEC. For more information click here: MEC Augmentation