Celestial Impact is a team based multiplayer first person shooter (FPS) taking place on various asteroids floating in space. But Celestial Impact is not your average team based multiplayer FPS. What makes this FPS really special is that the landscape is fully deformable in all directions, each impact on the landscape affecting it differently depending on the weapon used. But it is not limited to destruction; the players also have the ability to add terrain to the landscape in the middle of combat using a special tool called Dirtgun. With the Dirtgun, players can add or remove terrain during combat as they see fit, simply by aiming and firing the dirtgun. Depending on the chosen action, this will either add or remove a chunk of dirt from the landscape. So as the teams are battling, the landscape receives vast changes opening up for various tactical approaches each team can use.