Foursite

Foursite is a single-level PWAD for Doom II and a limit removing source port. It was designed by Ben Mansell (Bauul) and uses the music track "Demons on the Prey" from Doom by Bobby Prince.

Secrets

 * 1) In the western area with the sewers, open the wall behind the green armor for a teleporter to a soul sphere. (sector 903)
 * 2) In the dark water area at the southwest part of the map with the octagon-shaped walls, go to the southwest end and find the wall with the electricity symbol on it. Use it to find a berserk pack. (sector 1520)
 * 3) Return to the sewers once you have the blue key and go to the southwest end. Open the blue door to find boxes of rockets and a rocket launcher. (sector 7846)
 * 4) At the eastern section of the map with bridges over the nukage, get past the hall with demons to the ledge with green torches. Head left and through the slimefall to find a soul sphere. (sector 3135)
 * 5) As you go through the prison areas at the south end of the map, you will eventually reach a destroyed prison cell which connects the two prison areas together. There is some tarp in the east wall of this cell that you can go through. Do so to find a green armor. (sector 3729)
 * 6) Once you have the red key, return to the area with large bridges at the southeast end of the map and fall down to the west at the entrance. Open the red door to find a BFG9000 and energy cell packs. (sector 4047)
 * 7) After you get the yellow key, go back to the dark water area mentioned in Secret #2 and open the yellow door to the southeast. You will find a plasma gun and energy cell packs. (sector 1633)
 * 8) In the maze-like section of the northeast area, get to the northeast part of the maze and you will find a small round room with a cacodemon inside. Take the northeast corridor in this room, then head south and through the hanging body to find a soul sphere. (sector 7852)

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 December 6, 2021.

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

Inspiration and development
As Mansell's first Doom release and taking some 200-300 hours to create, Foursite received a fair amount of attention in the mainstream gaming press.