A strategic management game, best described as a sci-fi tower defence game with moving spaceships and configurable units. Design your own ships from a series of hulls+modular components, group the ships into a fleet, give the fleet orders and positions and then watch it engage in OTT gratuitous space battles against enemy fleets.
This is the trailer video showing off some of the new ships in a new race caleld 'The Tribe' which is the new expansion pack for Gratuitous Space Battles. This pack adds new ships (hull designs) for the races, plus some new modules that only the tribe can use, and two new scenarios for fighting against them.