Quake 1: All Secrets
Map start: Welcome to Quake (2 secrets)
- To enter Nightmare mode, go through the door to The Elder World. Walk into the pool, and walk backwards as you fall down. You should land on a thick wooden beam. From here you can enter the slipgate.
- Enter Nightmare mode - on the way to the slipgate, shoot the wall decoration, and Quake tells you "The Well of Wishes Awaits in the Crypt of Decay". The actual secret is elsewhere.