Quake Easter Egg - Big Ol' "Q" Shadow

This is easy to miss, but pretty cool.

In the level "Gloom Keep" (M1E6 I think, get there by typing 'map e1m6' in the console if you're lazy :) do the following. Be sure to avoid all traps and kill all badniks.

1. Go into the main entrance of the big castle-whatzit-thingy that you see from the starting position.

2. The 'road' forks where you find the rocket launcher. Go right.

3. Clear out the next few rooms.

4. In the room with the teleporter, look at the floor before you enter.

5. You will (should) see a big ol' "Q" like in the title as a shadow.

6. Look up and marvel that such a shadow exists with nothing casting it.