Holy Hell Revealed

Holy Hell Revealed is a single-level PWAD for Doom II and the PrBoom+ source port that came out in March 2016. It is a slaughter map that was created by Serekay as an expanded and even more extreme version of JK's Holy Hell, sporting a grand total of 41,660 enemies with no skill level differentiation. It uses the music track "BFG Division," originally composed by Mick Gordon for Doom (2016), and a separate download including HD textures is also available.

Secrets

 * 1) Head to the area west of the main hub with the cyberdemons, spectres, and two arch-viles. Go behind the switch here and press the skull switch, then get to the north wall of the main hub. The right side will be lowering, and behind it you can get four invulnerabilities. (sector 2458)
 * 2) In the southernmost area with the mancubi in cages, wait for the walls around the cages to lower, then enter the monster closet on the south side which is third from the right. Open the back wall to get an invulnerability and energy cell packs. (sector 2993)
 * 3) In the southernmost area with the mancubi in cages, wait for the walls around the cages to lower, then enter the monster closet on the north side which is second from the left. Open the back wall to get an invulnerability and energy cell packs. (sector 2996)
 * 4) In the field south of the hub area, head to the far southwest corner and press on the recessed wall to find four invulnerabilities. (sector 1311)
 * 5) After teleporting from the huge arena at the northwest end of the map, make your way all the way to the west wall in this section. A section of the west wall is slightly recessed. Use it to find an invulnerability. (sector 2728)
 * 6) In the marble room with six pentagram blocks, a wall on the west side can be lowered to reveal an invulnerability. (sector 3625)

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

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