E2M1: Sunken Serpentorium (Heretic Upstart Mapping Project)

E2M1: Sunken Serpentorium is the first map in the Mount Suffering episode of Heretic Upstart Mapping Project. It was designed by Zergeant and uses the music track "".

Secrets

 * 1) Enter the yellow key room, then quickly run to the water to the east to get a Tome of Power. (sector 234)
 * 2) In the room with two Timebombs of the Ancients on a fountain, head to the southwest room and use the switch inside. Head back to the curved staircase to the north and one of the stairwell poles is now open. Cross over it to reveal an Enchanted Shield over the slime. (sector 500)
 * 3) Pick up the green key, then head to the north closet and open the west wall to find either a Bag of Holding or a Shadowsphere depending on your skill level. (sector 587)
 * 4) Head east of the room with two Timebombs of the Ancients on a fountain. Flip the switch at the end and head east to a Tome of Power. (sector 661)

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

The (absence of) data was last verified in its entirety on January 16, 2022.

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