MAP20: Corruption 1: Corruption Begins (Rabbit's All-comers Mapping Project)

RAMP maps 20-29
MAP20: Corruption 1: Corruption Begins MAP21: The Spooky-kooky MAP22: Forgotten Water Storage Station MAP23: Command Facility MAP24: Mortem MAP25: Neoplasm MAP26: Septic Tank MAP27: Brick and Root MAP28: Cell Block Hell MAP29: Forgotten Data Processing Center
01 10 11 12 13 14 15 16 17 18 19 (20 - 29) 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209

This level occupies the map slot MAP20. For other maps which occupy this slot, see Category:MAP20.

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MAP20: Corruption 1: Corruption Begins is the twentieth map of Rabbit's All-comers Mapping Project. It was designed by Lazlo Panaflex and uses the music track "Journal" from Flashback, sequenced to MIDI.

Walkthrough

Map of Corruption 1: Corruption Begins

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

Secrets

1. On the broke bridge over the nukage, head northeast and find a button on the south wall. Use it and quickly run to the lift to the west. At the top, use the switch and jump back to the bridge. Head north and to the dead end. Face east and look for a gargoyle switch. Shoot above it to open this secret, which is southwest of you and contains a box of ammo, a box of shotgun shells, and a soul sphere. (sector 367)
2. See Secret #1. (sector 546)
3. Open the red skull door and head into the blood, close to the steps where the walkway is. Shoot the switch, head up the steps, and get the radiation suit to the south. (sector 648)
4. Press the satyr switch northeast of the yellow keycard to open the wall behind the keycard, containing energy cells, boxes of shotgun shells, a box of ammo, and a soul sphere. (sector 945)
5. At the northwest end, head northeast from the steps and open the wall to find a shortcut to the nukage channel. (sector 818)
6. Head south from the northwest end after using the switch in the middle room. In the brown area with the blue skull door, climb the steps, then look southeast and shoot the hellgrowth behind the cage. This opens a wall at the southwest part of the base, with a box of shotgun shells and a megasphere. (sector 711)
7. In the same area, open the west door and enter the nukage. Head southeast and flip the switch, then head northwest and get the plasma gun, rocket launcher, megaarmor, medikit, boxes of rockets, and energy cell packs. (sector 709)
8. At the northeast end of the blood area, head on the walkway and look for a gargoyle switch to the west while on the walkway. Shoot above that switch, then jump off the walkway to the east and head northeast to a BFG9000. (sector 779)

Speedrunning

Current records

The records for the map at the Doom Speed Demo Archive are:

Run	Time	Player	Date	File	Notes
UV speed
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on March 24, 2022.

Statistics

Map data

Things	1041
Vertices	4237
Linedefs	5450
Sidedefs	8378
Sectors	1196

Things

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

Single-player
Monsters	1	2	3	4	5
Zombieman	12
Shotgun guy	73
Heavy weapon dude	38
Imp	123
Lost soul	11
Demon	38
Revenant	11
Cacodemon	34
Pain elemental	2
Hell knight	8
Baron of Hell	10
Arachnotron	1
Mancubus	6
Arch-vile	3
Cyberdemon	1
Weapons	1	2	3	4	5
Chainsaw	1
Shotgun	1
Super shotgun	1
Chaingun	1
Rocket launcher	2
Plasma gun	3
BFG9000	1
Ammunition	1	2	3	4	5
Clip	24
Box of bullets	20
4 shotgun shells	41
Box of shotgun shells	22
Rocket	6
Box of rockets	13
Energy cell	21
Energy cell pack	12
Health & Armor	1	2	3	4	5
Stimpack	39
Medikit	24
Armor	2
Megaarmor	5
Items	1	2	3	4	5
Armor bonus	75
Health bonus	100
Supercharge	3
Megasphere	1
Backpack	2
Computer area map	1
Invulnerability	1
Partial invisibility	1
Radiation shielding suit	7
Keys	1	2	3	4	5
Blue keycard	1
Blue skull key	1
Red keycard	1
Red skull key	1
Yellow keycard	1
Yellow skull key	1
Miscellaneous	1	2	3	4	5
Exploding barrel	60
Teleport landing	5