E1M7: Laboratories (CH Retro Episode)

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CH Retro Episode maps
This level occupies the map slot E1M7. For other maps which occupy this slot, see Category:E1M7.
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E1M7: Laboratories is the seventh map of CH Retro Episode. It was designed by Christian Hansen and uses the music track " ".


Map of Laboratories
Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.


Other points of interest[edit]


  1. In the northeast nukage room, head north into the nukage and into the small tunnel. Head west and enter the northwest side room. Shoot at the west wall with caution stripes, then take a lift down to the courtyard to get health bonuses, a box of rockets, a box of shotgun shells, and a backpack. (sector 40)
  2. Open the red door, then go into the nukage room where a switch is on the north wall. Use it, head back through the red door, then head southeast into an open room with armor bonuses and partial invisibility. (sector 285)
  3. Flip the switch in the blue key room, then quickly run east, up, and west. In this room, flip another switch at the east wall before it closes, then jump into the nukage and head north and east, onto a lift. Ride it up, then head south. On the east side of the middle column, open it to find a chaingun, a stimpack, and a computer area map. (sector 353)
  4. After going through the door that leads to the northeast nukage room, head east to raise some steps. As soon as you do this and climb the steps that were raised, head south and into the nukage, then towards the poison sign at the south wall. When the ledge rises up, open the poison sign and take a lift with health bonuses down. Follow the trail of health bonuses to get a soul sphere. (sector 443)
  5. Open the yellow door, then look to the left and shoot at the metal wall to reveal a switch. Jump there and flip it, then hop down and head southwest, going further that way to get a megaarmor, a chainsaw, and a stimpack. (sector 470)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doomed Speed Demos Archive are:

Style Time Player Date File Notes
UV speed
NM speed
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist

Miscellaneous demos[edit]

Style Time Player Date File Notes


Player spawns[edit]

This level contains ten spawn points:

  1. facing north. (thing 475)
  2. facing north-west. (thing 476)
  3. facing north. (thing 477)
  4. facing south. (thing 478)
  5. facing east. (thing 479)
  6. facing east. (thing 480)
  7. facing east. (thing 481)
  8. facing west. (thing 482)
  9. facing north. (thing 483)
  10. facing north. (thing 484)


Map data[edit]

Things 505
Vertices 2578*
Linedefs 2758
Sidedefs 3842
Sectors 544
* The vertex count without the effect of node building is 2215.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]