You wake up in the middle of a Cavern with nothing but an empty revolver. Make your way out through all of the monsters that inhabit it.

Guide:

Most of the game is played only with the mouse.

Click somewhere on the map to move towards it. 

Click on a nearby enemy to punch it.

Click on a far away enemy to shoot it.

Click on nearby interactable objects to interact with them.

You can access the Pause/Settings menu by pressing ESC.

You can press Q and E to rotate the camera Left and Right (Rebindable on the Pause Menu).

On easy mode, you can press space (Rebindable on the Pause Menu) to pause the timer during the Plan phase.