Chasm Control

Chasm Control is a single-level PWAD for Doom that came out in May 2015. It was designed by Christian Hansen, as a submission for a rather unsuccessful (only two maps submitted) informal contest held by Buckshot on the forums of Doomworld. Another map was submitted by Adam Post (Doomkid), who became the winner of the contest. Its goal was to design a classic Doom map featuring outdoor areas in the style of a blend of E1M8: Phobos Anomaly, E3M6: Mt. Erebus and E3M8: Dis; the prize for the winner was a copy of D!ZONE Collectors Edition, formerly owned and signed by John Romero with a custom message which states: "Keep DOOMing! -John Romero."

As for the map itself, it is actually a revamped version of a 2000 map by Christian Hansen named The Unknown Chasm, and converted from Doom II to Doom. It requires a Boom-compatible source port, and it uses the music track "The Imp's Song". A further revamped version of this map was later released as E2M5: Chasm Control in the complete episode 2 replacement named Monument.

Secrets

 * 1) (sector 25)
 * 2) (sector 153)
 * 3) (sector 269)
 * 4) (sector 332)
 * 5) (sector 335)
 * 6) (sector 351)
 * 7) (sector 352)
 * 8) (sector 356)
 * 9) (sector 357)

Bugs

 * Secret sectors 352, 356 and 357 are placed outside the playable area. Therefore, it is not possible to receive credit for them, unless the player cheats to enable the no clipping mode. All in all, the maximum possible secrets percentage on this level is 66%.
 * The back sidedef 2759, which belongs to the linedef 1791, lacks its lower texture, which generates a minor hall of mirrors effect.

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

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