Spaceforce: Rogue Universe is space simulation in which the player has to make a living in space. Like other games in this genre the player starts with a cheap spaceship and has to earn money by collecting minerals, trading goods, killing pirates or successfully complete other missions.
The money earned can be used to upgrade the ship and weaponry. Missions prominently range between either "destroy ship/station" or "activate satellite". Included in the game are 10 different professions for the player to take up and 14 different spacecraft to fly in and 46 star systems to visit. The player also earns experience points which unlock new abilities.
Many different civilizations inhabit the various star systems. Completing missions for certain civilizations also changes the standing with that particular civilization and its enemies. When theses standings drop to a certain threshold a civilization might treat the player in a more hostile manner or simply just attack on first sight.