E2M3: Refinery (Doom)

E2M3: Refinery is the third map of The Shores of Hell in Doom. It was designed by Tom Hall and Sandy Petersen, and uses the music track "Intermission from DOOM". The par time is 1:30.

Walkthrough

 * Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.

Essentials
You begin facing a cage which contains one or more cacodemons. Go behind the cage to see two passages leaving the room to the south, and enter the right-hand passage. You will arrive at a nukage room with two rows of tan partitions, beyond which is a shotgun on a round pedestal with scrolling sides. Run straight through to the shotgun.

Turn right (west) into a green marble hall. Take the first right and then the first left to come to a metal door. Behind this door is the blue keycard.

Return to the cacodemon cage and leave the room via the left-hand passage (southeast). As you turn into this passage, you will see a blue door. Go through this door and follow the passageways. Eventually, you will come to a dark room with many square green pillars. Zig-zag your way west and north until you come to a platform overlooking another nukage room.

Run straight through the nukage, heading north. Turn left and follow the passageways to the exit door.

Other points of interest
At the start point, you will see a large metal door just ahead on your right. Behind this door is a substantial crowd of monsters guarding a chaingun, a berserk pack, a green armor, a radiation suit, and several large ammo pickups.

After picking up the shotgun, if you turn left instead of right, you will enter a round room with a pentagonal nukage pool in the center. This room contains a blue armor.

At the north end of the green marble hall is a chamber inhabited by a group of monsters and some barrels. On Ultra-Violence and Nightmare!, this includes a baron of hell, the first non-boss appearance of such.

Past the blue door, the hallway continues around through a vine-covered area, and finally into an oblong room with twelve small moving platforms. This room contains a shell box and a medikit.

Secrets

 * 1) The central construction in the vine-covered area is actually a secret room, accessible through a door on its northwest corner, and containing a backpack.  Note that it is not necessary to step into the slime to collect the secret (sector 103).
 * 2) The room with the twelve moving platforms is connected to the blue armor room by a secret door (sector 37).  This door can only be opened from the north side, although it is completely unmarked on that side; it is delineated in the round room by two metal strips on the wall.
 * 3) At the south end of the green marble hall is a passageway leading to a pool of blood.  If you drop into this pool and exit via the stairs to the north, you will find a plasma rifle (and, on UV and NM, two lost souls).  The back end of the staircase deposits you in the blue key room.  (sector 65)
 * 4) The blue armor room can also be exited to the east, into the vine-covered area, using a one-way door indicated by two metal strips (sector 97).  Together with secret #2 above, these two doors permit the player to pass between the start area and the shotgun/keycard area without stepping in the nukage.
 * 5) On the platform north of the dark room with many pillars, walk east as far as possible.  Step north out into the nukage and make a hairpin turn around the partition on your right.  You will find a small room containing a radiation suit.  (sector 119)
 * 6) From secret #5, go back out into the nukage and turn right.  Enter the tunnel on the eastern wall, and pass into an octagonal chamber containing a soul sphere.  (sector 121)

Bugs
The backpack can sometimes be grabbed through the back wall of the secret area (sector 96).

There are 3 known anomalies in this level's REJECT table.

Current records
The Compet-N records for the map are:

Inspiration and development
Early versions of this level appeared as E1M3 of Doom 0.4 and E1M3 of Doom 0.5.

Trivia
The music for this level is inspired by the track "Regular People" by Pantera.