MAP04: Fimbulvinter (Tetraptykon)

MAP04: Fimbulvinter is the fourth and final map of Tetraptykon. It was designed by Vladimir Bespalov (Demonologist) and uses the music track "". is a term from Norse mythology, meaning "great winter".

Secrets

 * 1) Inside the first building, get to the big room and head to the west fence. Find a skull switch to the northwest and shoot it, which will reveal a teleporter to the northwest. This takes you to the east platform with a megaarmor. (sector 220)
 * 2) In the big ice cave, head up the north steps, then head east. Go north, east, and south, then use the west wall that looks different to find a switch. Backtrack and head west to a teleporter and you will get a megasphere. (sector 456)
 * 3) When you teleport to the final area, head to the southeast by using the small steps and up to a switch. This lowers a cave to the northeast with a switch lowering an invulnerability. The invulnerability that lowers cannot be reached, but one in the next outside area you go to will be available. (sector 846)

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

The data was last verified in its entirety on January 6, 2022.

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