Odessa 12

ODESSA12 ("Chambers") is a single-level PWAD for Doom II. It was designed by Bob Evans as part of his Odessa series.

Secrets

 * 1) Towards the south of the level is a long north-south corridor at the end of which it is necessary to turn right to get to the yellow key. Approaching the turn opens up a door opposite the steps to the west leading to some ammo and an armor. Ascending the steps opens up a door at the end of the armor room, revealing a switch. This switch opens a door in the middle branch of the corridor, leading to a dark corridor. At the end of this corridor is a switch (the first time you walk along the corridor, the switch is briefly closed off) which opens up a door ahead leading to a plasma rifle. Getting the plasma rifle opens up a couple of doors – the northern one leads to a teleporter to the blue key. West of the blue key is a secret door (marked by a non-lit gargoyle) leading back to normal territory. Now go through the blue door (in the north centre of the level), go along the corridor and into the water area (from the south side). In the south-west is a soul sphere on a platform – press the nearby switch to lower the platform. Jump south off the platform when it is part-way up, go through the door, press the switch, go to the other switch, press it then quickly open the door to the north and jump out and turn right. Go through the teleporter that has briefly lowered (it can be lowered repeatedly) taking you to a narrow corridor which has a secret door on its south side (marked with a different texture) leading to a teleporter to a room with 1-4 demons, a BFG9000, an armor, and some ammo. (sector 272)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Player spawns
This level contains four spawn points:
 * 1) facing south. (thing 366)
 * 2) facing north. (thing 367)
 * 3) facing north. (thing 368)
 * 4) facing east. (thing 369)

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