The year is 2353 and the planets of the solar system are all orbited by space stations. A top secret research project on one of these stations has gone horribly wrong and a shadowy group has seized control of the facility. They then spread to five other stations, infecting all of the inhabitants. The elite Zero-G Marines has been sent to end the threat and retake the stations.

In Zero-G Marines, you select the missions your team will undertake, the personnel that will form your team, and the weapons they will use. Your missions will feature a variety of objectives and take place in a full 3D environment. You'll be able to give orders to your team through a simple tactical interface and will be able to capture station security weapons and systems, supplies and weapons, and free imprisoned marines and station personnel.

Your battles will take you throughout the station's corridors, rooms, and domes, as well as the station's exterior. Choose to fight while using gravboots or while flying through the zero-g environment with a thruster pack. You'll also have the opportunity to fly shuttles and other vehicles, and make use of their weapons systems.