Trapped in one of the labs of their research station, a group of scientists muster their only resistance against a hostile boarding party. Hacking into the hovering tank drone the invaders brought with them, they manage to compromise its targeting system, turning it - and its powerful railgun - against its former masters. Now the tank must clear the space station of all hostiles - level by level, shot by shot.

IFF is a top-down shooter where the player takes control of a hover tank, using its powerful gun and its bouncing projectiles to clear out different types of enemies. The shots are powerful and can clear out a room, but the long cooldown between shots means you need to plan your attack and take advantage of the architecture to maximize effectiveness.

One shot, one kill. Make them count, and good hunting!