| Move Forward / Backward |
W / S |
| Strafe (Slide Left / Right) |
A / D |
| Fire Weapon |
Ctrl |
| Open Doors / Use Switches |
Spacebar |
| Look / Turn Around |
Move Mouse |
| Change Gun |
Numbers 1 - 7 |
* Note: Click inside the game window once to lock your cursor and activate keyboard inputs. Press Escape to release your mouse.