Portal of Doom: Undead Rising is an awesome and intense sci-fi horror game. You have received a distress call on the space station – this is a place where experiments are undertaken. You do not know what has happened – maybe the experiments have gone wrong! Portal Of Doom: Undead Rising is a great game that you can play for free at in friv22.com. Regardless Portal Of Doom: Undead Rising game, we provide many cool Friv 22 games to play for free.

Use Arrow keys And WASD button to Move, Use Move Mouse button to Aim, Use Left Mouse button to Shoot, Use Right Mouse button to Zoom, Use Spacebar button to Jump, Use Ctrl button to Run, Use X button to Crouch, Use Wheel Mouse button to Scroll Weapons, Use F button to Pick Up, Use R button to Reload, Use P button to Pause, Use L button to Lock/Unlock Mouse Cursor,

adventure, shooting, scifi, weapons, monster, zombies..