Greenhouse


 * + Harvests anaerobes.
 * + Drag is very high, making invasion a lot harder.
 * - Useless special building for permas, not good enough special building for rebangs (Ion Tower, cloaks the colony and defences on the planet from scanners).
 * - Does not harvest medicine, organics or oil by default.
 * - Does not support high amount of colonists in most cases.
 * - Does not support higher amounts of solar shots.

Unique Building: Ion Tower