Tech reactor

The tech reactor is a add-on structure in StarCraft II: Wings of Liberty. It is available in campaign-mode only.

Game Structure
The add-on is acquired in Hyperion's lab in story mode for 25 protoss research points and at the cost of the barracks being being able to drop trained infantry anywhere on the map. The tech reactor merges the functionality of the tech lab and reactor into one add-on. This allows two of any unit to be built at once.

After being researched, all starting tech labs and reactors in subsequent missions are replaced by tech reactors. Tech labs and reactors may no longer be built.