E4M3: Chroma Quay (The Joy of Mapping 4)

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The Joy of Mapping 4 maps
Ep.1: Last Resort

M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 FINAL

Ep.2: City of Dissidents

M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 FINAL

Ep.3: The Verdant Reaches

M1 M2 M3 M4 M5 M6 M7 M8 FINAL

Ep.4: Frontier of Chaos
This level occupies the map slot E4M3. For other maps which occupy this slot, see Category:E4M3.
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E4M3: Chroma Quay is the third map in the Frontier of Chaos episode of The Joy of Mapping 4: Summer School. It was designed by Gutawer and uses the music track "Time Dilation" by James Paddock (Jimmy). The par time defined in MAPINFO is 25 seconds.


Map of Chroma Quay
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.


Other points of interest[edit]


  1. At the platform past the bridge, go to the northeast end and jump off. You will teleport to the top where you can get a rocket launcher, health bonuses, and armor bonuses. (sector 151)
  2. On the path to the red key, at the east side, jump to the east block and head around it to get a berserk pack. (sector 510)


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 February 24, 2023.


Map data[edit]

Things 272
Vertices 3656
Linedefs 4027
Sidedefs 7910
Sectors 526


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]