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This level occupies the map slot MAP28. For other maps which occupy this slot, see Category:MAP28.

MAP28: The Sewers is the twenty-eighth map of The Plutonia Experiment. It uses the music track "The Demons From Adrian's Pen" from Doom. The structure of the level is indeed reminscent to underground sewer lines with damaging "sewage" seeping every which way. It is notable for being a rather large stage with a lot of strong enemies to fight.


Plutonia MAP28 map

Map of MAP28


Other points of interest[]

After getting the yellow key from the library area, return to the map start area. Follow the hallway across the staircase mentioned in secret #1 to the east. In the room behind the yellow door, step onto the lit square platform to get the BFG-9000. Stepping onto the platform in coop game mode let players 1-4 get a BFG-9000 each. (This is done by Voodoo dolls that stand on lifts that are lowered when stepping on the aforementioned platform.)



  1. From the start of the level, go through the opening to the left and continue westward, down a spiral staircase encircling a brown slime-filled room. Near the bottom of the stairway is a wall with scratches on it. It's a fake wall, so walk straight through and follow the pathway up to some goodies.
  2. At the center of the level is a huge "+"-shaped tunnel with brown slime on the floor. At the end of the northern arm of this tunnel is a small bank of computers on the wall. Shoot it to open an alcove with a soul sphere in it on the opposite wall.
  3. Just southeast of the "+"-shaped slime tunnel is a room with a square, raised nukage pool with square brown platforms in it. Run from one of these platforms onto the brown "fence" containing the nukage. Follow it along to the west and drop into the small pool of nukage against the wall. The green wall bordering this small pool is fake, and you can walk through it for another secret.
  4. Make your way to the library area just southwest of the "+"-shaped slime tunnel. There is a broad bookcase at the south end of the largest of the library rooms; open it to reveal some goodies.


  1. After riding the lift down to the library area (see official secret #4), look at the south wall. Push the black flag to open a secret room containing six super shotguns and six plasma guns.


  1. There are actually two computer area maps in this map, which makes it impossible to gain 100% of the items, since the player can only pick one map per level. However, some source ports allow 2 to be picked up as a way to achieve the status.




The Compet-N records for the map are:

Run Time Player Date File Notes
UV speed 01:38 Xit Vono 2002-08-04
NM speed 01:32 Xit Vono 2003-02-21
UV max 05:57 Adam Hegyi 1998-12-20
NM100S 01:55 Xit Vono 2002-09-17
UV -fast 09:40 Chris "Ryback" Ratcliff 2000-12-10
UV -respawn 07:58 Chris "Ryback" Ratcliff 2001-11-22
UV Tyson
UV pacifist 01:38 Xit Vono 2002-08-04


Map data[]

Things 508
Vertices 2454
Linedefs 2519
Sidedefs 3700
Sectors 297


Monsters ITYTD and HNTR HMP UV and NM
Sergeants 20 20 20
Imps 31 31 31
Demons 11 11 24
Barons of Hell 4 9 10
Lost Souls 3 3 3
Arch-Viles 2 2 2
Chaingunners 5 5 7
Revenants 10 17 19
Mancubi 12 21 21
Arachnotrons 5 6 6
Hell Knights 21 32 39
Powerups ITYTD and HNTR HMP UV and NM
Backpacks 3 3 3
Stim packs 1 1 1
Medikits 26 26 26
Soul spheres 2 2 2
Health bonuses 28 28 28
Blue armors 4 4 4
Invisibilities 1 1 1
Radiation suits 12 12 12
Automaps 2 2 2
Megasphere 1 1 1
Weapons ITYTD and HNTR HMP UV and NM
Chainguns 1 1 1
Rocket launchers 1 1 1
Plasma guns 7 7 7
Chainsaws 1 1 1
BFG 9000s 4 4 4
Super shotguns 7 7 7
Ammunition ITYTD and HNTR HMP UV and NM
Bulk Cells 9 9 9
Ammo clips 9 9 9
Shells 14 14 14
Rockets 8 8 8
Rocket boxes 47 47 47
Energy cells 11 11 11
Ammo boxes 2 2 2
Shell boxes 11 11 11
Blue cards 1 1 1
Yellow cards 1 1 1
Red cards 1 1 1
Barrels ITYTD and HNTR HMP UV and NM
Exploding barrels 2 2 2

External links[]