E1M6: Primary Base (CH Retro Episode)

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CH Retro Episode maps
This level occupies the map slot E1M6. For other maps which occupy this slot, see Category:E1M6.
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E1M6: Primary Base is the sixth map of CH Retro Episode. It was designed by Christian Hansen and was originally released as a standalone level.


Map of Primary Base
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. Exit the starting room and take the north set of steps down. Head into the room to the north, shoot the barrels, and shoot the wall behind them to find a switch. (sector 33)
  2. In the central room with the green armor, press on the northeast wall that has silver on it to find a backpack, armor bonuses, and a stimpack. (sector 189)
  3. In a room at the northwest side, there is a megaarmor on top of a metal pillar. To get it, head northeast from the pillar and press on the north terminal to lower the pillar. (sector 216)
  4. In the large courtyard on the left side of the map, take the south door. In this room, shoot the barrels, then step in the southeast corner to lower the southwest corner. Drop in to get a chainsaw, a green armor, an armor bonus, and a stimpack. (sector 243)
  5. After flipping the switch where Secret #1 is, leave the room and open the nearby door. Quickly run to the northwest corner here, flip the switch, and take the lift up to get armor bonuses and a soul sphere. (sector 291)
  6. In the central room with the entrance to Secret #5, head southeast and open the wall with the poison sign to find a switch. After pressing it, and after getting the blue key, use the switch south of that one, then return to the starting point. Take the steps south of there and enter the passage leading to the courtyard, where you can get a rocket launcher. (sector 389)


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 west. (thing 426)
  2. facing south-east. (thing 427)
  3. facing north. (thing 428)
  4. facing south. (thing 429)
  5. facing east. (thing 430)
  6. facing north. (thing 431)
  7. facing east. (thing 432)
  8. facing south. (thing 433)
  9. facing north. (thing 434)
  10. facing east. (thing 435)


Map data[edit]

Things 456
Vertices 1816*
Linedefs 2000
Sidedefs 2772
Sectors 398
* The vertex count without the effect of node building is 1585.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]