2112 puts players in control of a colony of one of three different races. Using an element called Herani, each race uses different technology to develop and construct weapons and buildings. Players are encouraged to utilize the map to their advantage, using terrain and fortresses to create choke points that can be defended. Additionally, resource gathering points can be used to prevent enemies from attacking. The game features several structures, weapons, and other offensive units for each race, to make them feel different from one another.