E1M2: Mutagenic Quarantine (ConC.E.R.Ned)

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ConC.E.R.Ned maps
Dead Colliding
Parallel World

M1 M2 M3 M4 M5 M6 M7 M8 M9

Hellish Extermination

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E1M2. For other maps which occupy this slot, see Category:E1M2.

E1M2: Mutagenic Quarantine is the second map in the Dead Colliding episode of ConC.E.R.Ned. It was designed by Matt Powell (cannonball) and uses the music track 279.mid by Rachel Schmitz (Negatronica).


Map of Mutagenic Quarantine
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Head past one or two shotgun guys and an imp to a door and open it; you will find yourself in a large outdoor area with the red keycard on a pillar in the center, guarded by imps and zombies (plus demons and spectres on Hurt Me Plenty skill level or higher). Go through the north door to a nukage pool with a platform holding a chaingun and a radiation shielding suit, then head east or west to some steps that lead up to a hallway with a switch. Flip the switch and fight your way past some more imps that are released to the east and west, then go back to the center area where you can now pick up the red key.

Fight off the shotgun guys that teleport in then head south to a red key door and open it, entering a hall with gray columns and computer terminals. Fight your way to the other side of the hall and enter a nukage trench on the south side, which you can follow east to some steps that lead up to a switch. Flip the switch and drop back into the computer hall, then step round the block in front of you to see that the middle terminal has lowered to reveal more monsters along with a second switch. Pressing this switch will open the three UAC signs on the other side of the trench releasing imps, shotgun guys and demons; after defeating them, enter the nukage and head west to find the yellow keycard sitting on a tiny plinth.

Leave the nukage and open the yellow key door in the north-west corner of the computer hall, which leads to a large chamber divided by a nukage pit. Head north up some steps and look right to see an alcove containing three or four imps and a button, which will raise a bridge across the pit when pressed. Kill the enemies that teleport in behind you then head across the bridge, killing any imps and cacodemons that block your way, until you reach the exit door on the other side. Open the door and flip the switch behind it to finish the level.

Other points of interest[edit]


  1. Open the wall with the poison sign in the starting room to find a secret area with a shotgun. (sector 221)
  2. In the area behind secret #1, head to the north end and press the terminal on the left. It will lower to reveal a backpack, a medikit and an armor. (sector 378)
  3. In the area with the chaingun, go to the red sign at the bottom of the west staircase and shoot it, then run to the east through the open wall. Follow the path to an outside area with a radiation suit and a switch that lowers a supercharge and partial invisibility. (sector 311)
  4. In the south computer hall, find the terminal in the nukage trench that is blinking and shoot it. This will open a terminal to the west, revealing armor bonuses, rockets, health bonuses and a chainsaw. (sector 282)
  5. In the final area, enter the nukage and head south to the recessed wall. Open it to get a rocket launcher. (sector 168)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on December 20, 2021.


Map data[edit]

Things 461
Vertices 2508*
Linedefs 2457
Sidedefs 3678
Sectors 405
* The vertex count without the effect of node building is 2070.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


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