Uploaded October 2024 | Updated September 2026, 1 week ago

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Shows how to access all keys, all 'official' (score-affecting) Items, and the exit in Final Doom Plutonia Experiment level 21, Slayer. There are no official secret areas on this level, but one Item is in a hidden space that may get overlooked during a typical game.

Notes on the making of this demo: Down in the circular lava pit there's a skull switch on the north wall, a glimpse of which can be seen a couple seconds after the player takes the first Soul Sphere. It temporarily lowers that wall section and opens the chamber where the second Soul Sphere is found. Here that switch is activated from above, which can be done if the player is in just the right position.

This is a video conversion of the .lmp file PLU21ALL at ClassicDOOM.com:
classicdoom.com/pludemos.htm#plu21all

Timestamps:

0:00 - Item 1 of 3
0:05 - Activating switch from above
0:08 - Item 2
0:31 - Item 3 of 3
0:34 - Red key acquired
0:40 - Opening path to exit
0:45 - Exiting

This video is part of the ClassicDOOM 'Plutonia Experiment solutions' playlist:
youtube.com/playlist?list=PLB961E2C839CE71E8

#finaldoom #plutonia #classicdoom #plutoniaexperiment