Cobalt features several different game modes that are available, such as Capture the Plug (a variation of capture the flag), Deathmatch, TeamStrike (with one life each, inspired by Counter-Strike), Survival, and an upcoming Adventure mode. Along with these features, players can create their own maps with the map editor in-game.

You play as the main character, known as MetalFace. Some key mechanics of the game include bullet time, rolling (to deflect bullets), punching and throwing. All of which a player can combo together to produce an advanced level of play.