E1M1: Hanger E2M1: Deimos Anomaly E3M1: Hell Keep E4M1: Hell Beneath
E1M2: Nuclear Plant E2M2: Containment Area E3M2: Slough of Despair E4M2: Perfect Hatred
E1M3: Toxin Refinery E2M3: Refinery E3M3: Pandemonium E4M3: Sever the Wicked
E1M4: Command Control E2M4: Deimos Lab E3M4: House of Pain E4M4: Unruly Evil
E1M5: Phobos Lab E2M5: Command Center E3M5: Unholy Cathedral E4M5: They will Repent
E1M6: Central Processing E2M6: Halls of the Damned E3M6: Mt. Erebus E4M6: Against Thee Wickedly
E1M7: Computer Station E2M7: Spawning Vats E3M7: Gate to Limbo E4M7: And Hell Followed
E1M8: Phobos Anomaly E2M8: Tower of Babel E3M8: Dis E4M8: Unto the Cruel
E1M9: Military Base E2M9: Fortress of Mystery E3M9: Warrens E4M9: Fear


The Map
     The Breakdown of Weapons       E3M1:  Hell Keep      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 25 (-932, 1888) rocket launcher rm

1) The small grey chamber before the exit has a secret room <0xfc900da5, 0x7606912> in west containing the rocketlauncher.

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The Map
     The Breakdown of Weapons       E3M2:  Slough of Despair      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 19 <6e40000, 7d40000> (1764, 2004) wall blocking way to chaingun in NE
2 28 <2720000, c080000> ( 626, 3080) hallway to rocket case at tip of middle finger
3 58 <24a0000, 5280000> ( 586, 1320) plasma rifle near 2nd finger fm W

1) To get a chaingun, follow the wall to your right (west) to the chaingun behind the wall.   The wall will lower when you walk over the red patch <0x6b010ab, 0x75220b7> to its west side.
2) The second `finger' from the east has some cages with former sergeants.   To get into those cages, walk over the red triangle <0x3fa278b, 0x817fa0c>.   The floors of the cages lowers and a wall behind you will come down.   To lower the triangle column (actually it rises) you want to shoot the back wall of one of the six cages the sergeants were in.   Shooting it raises the pillar exposing the red triangle, walking over which lowers the sergeant platforms allowing you to get the stuff in each one.
3) In the large circular room at the end of the middle finger is a supercharge.
4) The plasma gun is hidden in the western part <0x2072324, 0x4ecdc0e> of the pillar you see when you stand with your back to the second `finger' from the west.

The BLUE KEY is at the end of the "pinky" of the Slough.
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The Map
     The Breakdown of Weapons       E3M3:  Pandemonium      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 71  <4600000, ffa00000> (1120,  -96) rm E of northern niche in E corridor with dark niches
2 110 (-624,  496) rm just N of lava maze with BFG9K
3 154 (-320,  928) computer map in SW corner of N chamber near exit
4 164 <47a0000, 4510000> (1146, 1105) rm with rocketlauncher N of #1
5 184 <1c80000, 1c00000> ( 456,  448) chaingun in SE niche of toxic lake
6 187 <00000,   3a00000> (   0,  928) ammo in SE corner of N chamber near exit

1) In the starting room, a megaarmor can be obtained on a ledge overlooking the yard in front of where you start.   When you go up the stairs to the right, and then down the elevator to the area which has stairs going down to where the blue key is, there is actually a second elevator in the wall which leads up to the ledge with the armor.   This second elevator <0x48189c, 0xfe5f9916> can only be used once, and you must move back slightly after pressing the button or else the elevator will catch half way up under an overhang.   The armor's ledge does damage so grab it quickly.
2) Directly north of the beginning is a great open place with 4 pillars.   Pressing the switch <0xfea95756, 0xaff327> in the north will lower the middle pillar <0xfe921ce9, 0xfef4c1db>, so you can get the shotgun.
3) To get to the rooms with the windows to the room in the beginning, go north and take both the east and the west stairs, and then south.
4) A little north of the middle is a round green lake <0x120905e, 0x1754b6d> with a lavalike ceiling.   In an indention <0x1c9c5cd, 0x1c492ee> in the east is the chaingun.
5) In the SW is a corridor with two platforms (one in the north and in the south).   There is a small corridor in the south.   When you follow it, you'll come to a T-split.   In the west (right) is an invulnerability, useful for running over the lava in the east.   Take the turn left (east).   You should be on the southern platform of the corridor.   In the south of that platform you can see a lava/blood maze <0xfd9760e5, 0x1de4aec>.   In that maze you'll find the BFG9000 <0xff1ebaad, 0xdeec44> in the SE corner and a supercharger <0xfe3afdf3, 0x2101114> in the NW corner.   You can also get to the lava maze by going directly north from the beginning, then taking the west stairs, then following the path north.
6) One of the most northern chambers (the one just before the blue door leading to the exit) has two air shafts flanking a formation you could describe as a coach facing north.   When you stand on the coach <0xff6e17cb, 0x532520e> the wall part west of the stairs south will lower allowing you to get the map.   The wall part <0xfffcfa97, 0x41c62aa> east of the stairs will lower when you push it.
7) The last two secrets are in the area to the east of the level, off the east hall and over the stairs guarded by lost souls.   Just entering the room around beyond it with the lava and Cacodemon counts as one secret.   Getting to the area past that with the berserk pack and armor counts as another.

Take the east stairs from the big room opposite the start alcoves. Go south from the top of the stairs, then east, and take a lift down. Continue southwest into a silvery room with the BLUE KEY.
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The Map
     The Breakdown of Weapons       E3M4:  House of Pain      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 91  <4fe0000, 2630000> (1278,   611) rm in NE with SW window where you can shoot
demons
2 98 ( -32,  -764) BFG9000
3 124 <6c00000, fd9c0000> (1728,  -612) radiation suit in NE
4 177 (-328, -1312) secret rm with rockets in W side of rm S of BFG9000

1) The first room to the west from the beginning has a secret room <0xfebbbdcd, 0xc4c579> in the SE corner containing the shotgun.
2) In the SW (a bit behind the blue door) is a room with a doors to the east (the entrance), to the north (where you find the BFG9000 <0xffdaa1b0, 0xfd07e1fa> in some lava), to the west (where a lot of Imps and a baron of hell await you) and to the south.   The south chamber has a secret room <0xff49f58f, 0xfae5873e> to the west filled with rockets.
3) In the south middle east of the blue door is a room with a door to the north and a small patch of blue lake on the east side.   Press the wall <0x3ddce70, 0xf9d91cc3> a bit more north of that patch of blue for a green armorvest.
4) In the middle is a room with two pillars with switches on all sides.
Here is a rude ascii-chart of the scene to facilitate solving this.
[#] is a door opened by switch #
[Y] is the yellow keycard door
[R] is the red keycard door
Behind door 2: an invulnerability
Behind door 3: the yellow key
Behind door Y: the red key
                             +---+
                  +--+       |   |
                  |  +-------+   +--+
    +-------------+  +      [7] [Y] |
    |            [3] |    ---+---+--+  rest of the level...
    |     --------+--+      [6] [7] |   .
    |            [2] |     +-+[R]+--+   |
    |     --------+--+     | |          |
    |       0         4    | |          |
    |     3 [] 1    7 [] 5 | ++ +-+ +-+ +
    |       2         6    |  +-+ +-+ +-+ <----- secret wall, press it
    .                                 +-+        for a radiation suit 

5) As drawn above, there is a secret wall <0x6cffeee, 0xfdd03be8> in the south of the most eastern indention.   It contains a radiation suit.
6) The final secret for this level is located to the left of the starting room, past the Cacodemon cages and behind the wall.   Using the teleporter across the lava to enter the room counts as a secret.

Go west from the area with three switches, then south, to find the wondrous BLUE KEY along with some uglier things....
The RED KEY is found just past the yellow door.
to get the YELLOW KEY, in the room with the switch pillars use the WEST switch on the WEST pillar.


The Map
     The Breakdown of Weapons       E3M5:  Unholy Cathedral      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 1 (-1376, -960) light amp rm
2 97  <30e0000, 730000> (  782,  115) chainsaw E of center chamber
3 106 ( -224,  -74) S stony structure in center
4 108 <8a0000,  1200000> (  138,  288) E stony structure in center
5 128 (-2238,  605) westernmost room with plasma rifle
6 132 ( -586,  288) W stony structure in center
7 178 <1e40000, 8e00000> (  484, 2272) rocket launcher in most northern rm
8 204 ( -224,  650) N stony structure in center
9 237 (-1320, 1440) secret door to NW in W part of N corridor; leads
W to lava room
10 257 (-1356, 1568) radiation suit in NW chamber

1) Take the most western entrance to the cathedral.   Push the west wall <0xfc4e8e97, 0xfc5dfd80> and get the lightamplifier <0xfad56408, 0xfc1fa3ee> in the SW corner.
2) The most NW chamber (the one with the lava floor) has secret door <0xfa4ed057, 0x61933f5> to the east with a radiation suit.   The transporter in the room leads to the middle of the map/cathedral.
3) The east wall <0x2d56f0d, 0x9b29c1> of the big central room of the cathedral (the one with the four 2x2-teleporters) hides a small niche with a supercharger and a chainsaw.   The yellow key is required to open this door.
4) Also the four stony structures to all sides of the middle warp-in are hollow.   The doors will automatically open each time you warp in to the middle from another place (from outside to inside).
5) In the cathedral are four 2x2-teleport-places.   The northern two are connected to the north by a corridor.   That corridor has a secret passage <0xfd48642a, 0x56afd0c> in the NW.
6) The most northern room has three switches and a teleport with crushing ceilings.
The SE-switch opens the secret doors in the corridors to the east and west, enabling you to get the rocket launcher and some rockets.
The NE-switch lowers the blue key in the NW-corner.
The NW-switch lowers the chaingun in the NE-corner.
The teleporter in the SW teleports you to the NE corner of the cathedral.
7) The most eastern room (east of the exit) has a small pit, from where many enemies will warp in.   To the east of that room, behind the skull <0x787fd10, 0x2eaf2e4>, is the BFG9000.
8) For those of you wondering just which damn transporter you have to take to get out the middle of the cathedral: it's the most southwestern of the northwestern patch of transporters.

The BLUE KEY is in the northernmost room. To get it, flip all the switches under crushing pillars.
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The YELLOW KEY is found in the southern structure with respect to the central teleport terminal. To get it, go to the northwestern area with the green slime pit, cross it, which opens a door, then go through that door and run to the teleport.


The Map
     The Breakdown of Weapons       E3M6:  Mt. Erebus      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 77  <3e40000, 39c0000> ( 996,  924) energy cell in NW-SE oriented structure with cages
at entrance
2 88  <3800000, bdc0000> ( 896, 3036) in front of door to level 9
3 92  <1800000, a400000> ( 384, 2624) chainsaw
4 121 <8030000, 19c0000> (2051,  412) plasma rifle on NE end of small building with 2
teleporters

1) In the east is a cubus-formed building on a hexagon isle.   The east alcove <0xd1027ea, 0xfe2234b7> is the way in. In the NW corner <0xb9d75d8, 0xfeb0d1db> is the backpack.   Pushing the skull <0xbd80026, 0xfe22bffe> on the west wall lowers the wall in the SE, releasing the enemies trapped there.   Pushing the skull <0xc5fdf50, 0xfe67fb05> on the north wall lowers the wall in the NE, so you can get the radiation suit there.
2) In the north is a NW-SE oriented structure with two cages with Imps at both sides of the entrance.   That structure has a secret door inside in the middle of the NE wall <0x3a60e7c, 0x356d9b4> (at the small light on the floor) and a teleporter in the middle of the SW wall <0x281e808, 0x22e23de<.   The teleporter will put you on a high structure further north.   From there you can 'jump' west and get the chainsaw.   You can get out via the transporter in the SE side <0x34a6f68, 0x9bd1900> of the structure you warped on.
3) East of the above described NW-SE oriented structure is a small _|_ formed building on a small hill.   The building contains two teleporters.   The eastern warps you on the NE ridge of the hill, where you can get the plasma gun <0x7e352bd, 0x1c1c059>.   The western transporter also warps you to a ridge (NW) of the hill, but there are only some shotgun shells there.
4) The small blue building <0x941bec7, 0x293e0bb> in the NE contains a radiation suit and cacodemons.
5) All compact flaming red structures contain enemies and a few soul spheres or a radiation suit.   Sometimes one of the walls goes down, spilling the enemies.
6) See Chapter [10-1-3] for information on getting to the secret level.   This counts as a secret as well.
7) The fourth and final secret passage area on this level is inside the same building room with the secret teleporter leading to the blue box ledge.   On the opposite wall is another hidden wall opening <0x3aa61a5, 0x365963f> which contains a cell pack.
8) The exit is in the middle west: follow the south wall over the lava, you'll see a tunnel <0xfb186e6b, 0x54a49e> going north to the blue door, and further the exit beyond.

The BLUE KEY is in different places according to the difficulty level. On low levels it is on the floor in an area with four Imp cages. On higher levels the BLUE KEY is in the Y-shaped structure, in the southeast branch.
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The Map
     The Breakdown of Weapons       E3M7:  Gate to Limbo      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 80 <7800000, 5350000> ( 1920, 1333) BFG9000, in NE
2 84 (-1184, -408) supercharger in pentagram
3 98 ( -724, -876) secret rm SE of pentagram rm
4 119 ( -640, 1938) plasma rifle & energy cells, past teleporter in SE

1) Beyond the northern blue door is a maze of small lava tunnels.   In the SE corner <0x7a37332, 0x5bec063> of this maze is the BFG9000 and a transporter to the SW quadrant of the map.   In the NW is a transporter <0xff7323ef, 0x824218c> warping to the SW quadrant, the red key <0xfe3f638e, 0x6fd04ca> and a red door.
2) There are several pillars in the various lava-lakes with red doors, all containing transporters:
(0) In the most SW lake is in the north a pillar <0xf9e908db, 0xfc8d60ac>.   It warps you to a room where you can see the yellow door.   In the same room is also a switch <0xfcaffa88, 0x45f8a18> on the east wall, pushing it activates a bridge in room (1).
(1) In the middle (big) lake is also a pillar <19c3b9d, 362e08> with a transporter.   It warps you to the room west of the above room.   In this room is also a yellow door, in it is a switch that activates the bridge to the pillar in the middle of a lake (.
In the most northern lake are two pillars (east/west).   The western pillar has a transporter to the SW ridge looking out over the middle pillar.....   The switch opens a door??? The eastern pillar <2d380df, 57aafc9> leads to the ridge east, with the yellow key...
SE: <31ff6e7,faea6d2e> NE of tower, with plasma gun.  
In the NW lake is in the north a pillar <0xfe1aff7a, 0x4093707> containing a transporter.   It warps you to the yellow door.

Go west from the big blood pool room. Then go south, go around the octagon, and then southeast. There's a BLUE KEY there.
The RED KEY is found on the far-western safe spot in the northeast blood trenches.
From the big blood pool go north, and take the western teleporter. Flip the switch, return, and take the eastern teleporter. Get the YELLOW KEY.


The Map
     The Breakdown of Weapons       E3M8:  Dis      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 None None None

1) Not a real secret room, but in case you are wondering: the room in the middle contains a plasma gun and a blue armorvest.

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The Map
     The Breakdown of Weapons       E3M9:  Warrens      The Breakdown of Special Items
The Breakdown of Characters
_
Secret # idmypos Coordinates Decimal Coordinates Description of the Secret
_
1 23 (-804, 1888) secret rm W in rm just S of fake exit

1) This level is very similar to E3M1, but is much more difficult.
2) Just like in Hell Keep, there is a rocket launcher just in the west of the small grey chamber <0xfd20a96c, 0x76057af> in the NW.   This rocket launcher is not available on Ultra-Violence mode and above.
3) Note that many of the hidden rooms full of enemies (the rooms that open when you go over the transporter-lookalike in the NW) contain weapons and other goodies.   Most beneficial of those is the BFG9000 in the SW corner of the lake (west behind the entrance).

After you cross the trigger that was the exit teleporter in E3M1, several passages open. Go to the north end of the area you are in and take the BLUE KEY.
The RED KEY is found by going down the east passage from the start room, which teleports you. Go east from your destination to get a RED KEY.
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