Nightmare #1 | Nightmares Wolfenstein: The Old Blood Guide
Last update: 11 May 2016
The first nightmare can be experienced in the asylum, when you find the bed shown in the picture. Interacting with it moves you inside a nightmare set within a Wolfenstein 3D level. The nightmare is available in the first chapter, entitled Prison.
In the nightmare you have to find the exit. The secondary objective is to collect all the silver plates scattered throughout the entire level. While exploring, keep in mind two main rules. The first is to walk along the walls and examine them one by one. Doing this will reveal secret rooms, where you can find not only ammunition and armor, but also silver plates needed to unlock a collectible character.
While exploring, you will be encountering enemies. These are dogs (which are actually more dangerous than guards), guards armed with pistols, and commanders with automatic rifles. The above map shows locations of all silver plates, items, and aid kits. In the first nightmare there are 62 silver plates - collecting them unlocks a collectible sentry from nightmare.