If want to play as zombie and fight agains and interstelar alien then try Martian Zombie Survival in the great fps sci fi with option to play in 2 mods and fun. Enjoy!
*WASD* - move *down*, *up*, *left*, *right* or *arrows* - move *mouse* - look around *space* - jump *shift* - run *0*..*9* - change guns
Draw
Crazy
Indus
Jungl
Swing
Tract
Trick
Funny
A Sil
Redpo
Maze
Panda
Desaf
Angry
Wante
Crypt
World
My Dr
Weeke
Phila
Monst
Merry
Ticto
End O
Chris
Bomb
Ride
Rosie
Fashi
Amigo
Real
Pool
Spong