AssaultCube

Cube is one of the best Open Source shooter games and it is commonly used as base to develop new games, as we can see in this one called AssaultCube.

AssaultCube offers us a big number of realistic scenarios for our epic battles.

Although you can play on your own, the amazing experience of AssaultCube starts when playing it online thanks to the multiplayer game, no matter if you play against all players or in team mode as if you were playing CounterStrike.

If you like FPS games and you want to enjoy firing, give it a try, remember AssaultCube is totally free.