Zombie Defence 2Very well done Zombieshooter that works like the famous tower defence games, very addictive! Hit 'Z' to call in an airstrike.
Madness InteractiveThe classic game, run around, grab some weapons and kill some people. Total chaos, but make sure you do the tutorial if its your 1st time ;)
Ultimate DownA sidescrolling zombieshooter, the gameplay is okay but the graphics are a bit dull. It gets more exciting with other weapons.
Ninjotic MayhemA nice and fast arena ninya-battle game, goes very fast and has loads of different monsters to defeat!
Sniper 3More killing in part 3 of the Sniper series, not the best of them I think but still nice to go through.
Invaders 1978The oldskool 1978 Invaders! Soon a newer version too but you'll never get tired of this one.
Shoot 'Em UpThis shoot-em-up (or shmup) has nothing really special, its just really addictive. Run around and kill everyone whos coming for you.
Run With DeadA shooter/racer/spacer... From mushroomtrips to heroin, shooting, blood, shiny rainbows. Thats it!