Arm yourself with a vast array of weapons, equipment, and abilities to fight aliens, zombies and robots to save the earth. Or become the enemy and fight to destroy it.
Movement - WASD/Arrow Keys
Jump - Space
Aiming/Shooting - Mouse
Next/Previous Weapon - Q/E or Shift/Enter
Select specific weapon - Number keys
Use Ability - F/Ctrl
Pause - Esc/P