Walls

Walls is a single-level PWAD for Doom that was designed by Kurt Schulenburg and released in August 1994 along with his other PWADs Fred, JStuff10, and Spiral.

Essentials
Follow the labyrinthine path until you reach the room with the baron of Hell. In the next room you will see a misaligned brick texture. Inside you will find the blue key. You must be quick because once the door closes, you are trapped inside. Now go back to the starting area and go through the blue door. You will enter a series of marble corridors. Follow the straight path, face another baron of Hell. In the back room, turn left and you will see a misaligned texture. There you will find a dark room with several demons. Continue and then stop in the middle of the corridor, turn right and open the hidden door. In the small room you will find the yellow key.

Go back to the marble area, go in the middle and turn to the west path. At the back you will find a small room with the yellow door. Follow the path until you reach the area with the red key. Climb up it and then enter the teleporter, which will take you back to the center of the marble area.

Now take the path to the north. You will clearly see the blue door. Cross over to the final area. Be careful, there are a number of enemies guarding this area, including a cyberdemon at the exit. Once you eliminate it, you can finish the map.

Secrets

 * 1) In the north-west of the level is a secret door (marked with a misaligned texture) leading to 4 shotgun shells and a blue key. (sector 52)
 * 2) In the room south of the exit, the southern wall has four protruding parts. The eastern one lowers on pressing, revealing a teleporter to an area in the east. The sector south of the teleport destination, containing five boxes of bullets, counts as a secret. (sector 26)
 * 3) From the crossroads south of the blue door, head east. There is a secret door on the south wall (marked with a misaligned texture) leading to a radiation shielding suit. (sector 136)
 * 4) The room before the yellow key room counts as a secret and is impossible to miss. (sector 66)
 * 5) The yellow key room counts as a secret and is impossible to miss. (sector 69)
 * 6) On the path to the red key, just after the nukage, is a secret door to the east leading to a backpack. (sector 138)
 * 7) After taking the teleporter mentioned in #2, head north-east then hook round and head south to a switch. This switch lowers several walls in the opening area, revealing a ledge in the south-west with seven imps and two barrels. There is a secret door to the west here (marked with a misaligned texture) leading to two medikits and four rockets. (sector 14)
 * 8) Shoot the north wall of #7 - it opens, revealing a box of rockets. (sector 17)
 * 9) After lowering the walls (see #7), there is an area with four small nukage pits. This area has a secret door on the eastern wall (marked with a misaligned texture), leading to a teleporter to a nearby ledge allowing access to four alcoves with items. (sector 112)

Current records
The records for the map at the Doom Speed Demo Archive are:

The data was last verified in its entirety on November 30, 2021.

Player spawns
This level contains four spawn points:
 * 1) facing north. (thing 115)
 * 2) facing north. (thing 116)
 * 3) facing north. (thing 117)
 * 4) facing north. (thing 118)

Things
This level contains the following numbers of things per skill level: