• Control: Fire, hold Control down to fire rapidly
  • Arrow Keys: Move
  • Shift (held) while moving: Run
  • Alt (held) while moving: Strafe (move sidways)
  • Period and Comma: Strafe (push instead of left and right arrow keys)
  • Spacebar: Activate Switches, Open Doors etc...
  • Enter: Shows the last message that appeared in the top left corner in the Screen, or to select something in the menu
  • Tab: View the Map
  • Escape: View menu (this can be used anytime in the game, including at the title screen, and ending texture screen)