- This article is for the Legacy of the Void multiplayer version. For the previous expansions' multiplayer version, see Engineering Bay (Wings of Liberty and Heart of the Swarm).
The Engineering Bay (commonly abbreviated as E-Bay or Engi-Bay) is a structure in the Terran Tech Tree which requires a Command Center before it can be built. The Engineering Bay is the research center for Infantry Weapons, Infantry Armor, Hi-Sec Auto Tracking, Building Armor and Neosteel Frame. It also unlocks the Missile Turret, the Sensor Tower and the Planetary Fortress so building an Engineering Bay is common even if infantry units are not used.
Unlike its Brood War counterpart, the Engineering Bay cannot Lift off in StarCraft II.
Infantry Weapons Upgrades
These upgrades affect the following units: Ghost, Marauder, Reaper, Marine.
Infantry Armor Upgrades
These upgrades affect the following units: Ghost, Marauder, Reaper, Marine, SCV.
| Patch 3 (version 0.5.0.14219B)
- Infantry Armor: The time required for each upgrade was reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.
- Infantry Weapons: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.