Startopia

Description
Startopia is a real-time strategy/city management game. Set in a post-apocalyptic future, it is your job to rebuild the once-thriving network of space-stations. You must compete against several other enterprises, using economic and military means to expand your power.
The toroidal space stations are divided into three decks, each split into several sections with bulkheads. The droids construct buildings, deliver cargo, make repairs and can open sealed bulkheads. The first deck houses the basic building to maintain the station like a port for the alien visitors, a recharger for your working droids and an Energy collector that powers the different facilities. Energy also serves as currency. The inner Pleasure deck is home to shops, bars, discos and other entertainment. An outer deck called the Bio deck can be used to grow plants and trees and is used by the visiting aliens as a recreational deck.
Nine different alien races, each with their own abilities and preferences, can visit your station. Aliens can be hired to work for you in your facilities or as security. The game modes offered are missions, sandbox and multiplayer.