DOOM - Hidden Classic Level Locations

There are quite a few Classic Map Levers hidden throughout DOOM’s singleplayer campaign. As the name suggests, these levers essentially unlock a Classic Map secret. It is a good idea to check every nook and cranny to find them all.

Secret Doom Classic Level Locations

The UAC

Resource Operation

Foundry

Argent Facility

Argent Energy Tower

Kadingir Sanctum

Argent Facility (Destroyed)

Advanced Research Complex

Lazarus Labs

Bonus: Time Well Spent Challenge

Titan's Realm

The Necropolis

Vega Central Processing

Argent D'Nur

All Retro DOOM Level Locations