|[[E1M5: Phobos Lab (Doom)|MAP05: Phobos Lab]]||
|[[E1M6: Central Processing (Doom)|MAP06: Central
Processi¨ng]]||The red key room has been removed; the red key is relocated outside in the [[nukage]] area. Two of the slime pool areas behind the blue key door have also been removed.
|[[E1M7: Computer Station (Doom)|MAP07: Computer Station]]||