The Cathedral is the sixth level of the City of the Damned, the first episode of Heretic.

It is a large temple dedicated to an unknown deity or pantheon of gods, currently occupied by various monsters and Disciples. While the the beliefs of the Sidhe people are never elaborated upon, this cathedral suggests their religion is similar to Christianity. The level also holds the hidden exit to the first secret level in the game.


You start out facing a set of pews, with the yellow key immediately behind you but above your reach. Turn right and follow the curving stairs to the window above the starting point. This will lower the yellow key and open an ambush. Grab the key and head down the aisle, passing around the grey stone wall when you reach it. Head up the stairs and pass through the yellow door to enter the central area of the level. Turn right and press the switch, then turn around and run over to the platform that lowers. Ride it up and follow the passage to collect the Ethereal Crossbow. Now go to the easternmost grey structure in the central room. Pull the switch to lower it, then ride up and pass through the door into a room with many stained glass windows. An ambush triggers as you enter this room. Collect the Dragon Claw and head through the door opposite the one you came in from. You will find yourself in a room containing barrels and an altar. This appears to be a dead end, but if you search the southeastern wall, you will see a section that is out of alignment. Open this hidden door and head up the stairs to run over the altar. A section of the floor will lower temporarily. Go through the passage that is revealed and follow it to a graveyard with a large tomb in the center. Enter the tomb and locate a corner with a flashing light. Open the west wall of this corner and make a U-turn to the right as you pass through to find a switch. Pull the switch to raise the stairs near the green door, then go through the teleport to find yourself on top of the coffin. As you walk away from the coffin, a section of the roof will fall in, revealing monsters and the green key. Take the key and exit the building the way you came in, going straight ahead through the demon face door to find yourself in the central room again. Head straight across and up the stairs to the green door and pass through. Make a wide U-turn to the right to find a corridor with grey stone walls and wooden supports. Head down the corridor to find a switch next to a platform overlooking the central room. Pull the switch and cross to the northeast corner of the room, where you will find that the previously blocked switch has been made accessible. Pull it to open the central structure in the room, revealing the exit.


  1. At the start of the level, turn around and press the left-hand carving of a robed man to reveal a chamber containing some Gauntlets. The other carving will raise when you take them, releasing a monster.
  2. Enter the second chamber that opens when you get the above secret for another credit.
  3. In the room with many stained glass windows, one of the windows to the north is a fake wall. The sides of it are marked by hanging skulls. Pass through it to collect a Tome of Power. This chamber is also accessible via a teleport found through the door straight ahead from the green door.
  4. In the room with many stained glass windows, one of the windows to the south is a secret door. The sides of it are also marked by hanging skulls. Pass through to reach an area with some Time Bombs.
  5. In the northwest corner of the room with many stained glass windows, there is a secret door concealing a Map Scroll.
  6. In the graveyard area, you will find a black demon face door to the northwest. Open it and pass through the teleport to collect a Morph Ovum hidden near the starting point.
  7. Outside the building in the graveyard area, locate a wall on the west side that is unaligned from the rest. This secret door conceals a Shadowsphere.

Secret Exit Open the exit portal, but do not exit. Go through the green door and head to the grey stone corridor. A passage will have opened in the side wall. Pass through and head to the south of the area to find a switch. Pull it to open the sealed door nearby and pass through to find the secret exit.


Single-Player Stats


HereticStatIcon Difficulty Level
1-2 3 4-5
GargoyleIcon 12 26 32
FireGargoyleIcon 7 9 11
GolemIcon 24 39 53
NitrogolemGhostIcon 1 2 2
NitrogolemIcon 8 13 13
GolemGhostIcon 1 1 1
UWIcon 9 15 18
UWGhostIcon - - -
DiscipleIcon 5 7 9
WeredragonIcon - - -
SabreclawIcon - - -
OphidianIcon - - -
LichIcon - - -
MaulotaurIcon - - -
SerpentIcon - - -
DsparilIcon - - -
Total 67 115 139

Weapons and Ammo

HereticStatIcon Difficulty Level
1-2 3 4-5
GauntletsSprite 1 1 1
CrossbowSprite 1 1 1
DragonClawSprite 1 1 1
HellstaffSprite - - -
PhoenixRodSprite - - -
FiremaceSprite - - -

HereticStatIcon Difficulty Level
1-2 3 4-5
WandCrystalSprite 42 36 27
GeodeSprite 2 2 1
EtherealArrowSprite 24 19 16
EtherealQuiverSprite 1 1 1
ClawOrbSprite 32 24 19
EnergyOrbSprite 2 2 2
LesserRuneSprite - - -
GreaterRuneSprite - - -
FlameOrbSprite - - -
InfernoOrbSprite - - -
MaceSphereSprite - - -
MaceSpherePileSprite - - -


HereticStatIcon Difficulty Level
1-2 3 4-5
CrystalVialSprite 58 47 32
QuartzFlaskSprite 7 7 6
MysticUrnSprite - - -
SilverSheildSprite 3 3 3
EnShieldSprite - - -
TorchSprite 1 1 1
MapScrollSprite 1 1 1
BOHSprite 3 3 2
ShadowsphereSprite 1 1 1
TomePowerSprite 4 4 3
InvRingSprite 2 1 1
WingsSprite 1 1 1
ChaosDeviceSprite - - -
EggSprite 1 1 1
TimeBombSprite 15 10 7

Multiplayer Stats

To be Added

Notes & Trivia

  • The hidden stairs behind the altar room are lacking their upper textures.
    • Sidedefs are 732, 734, 736, 738 and 740.

External Links

Heretic - Episodes & Levels
Episode 1
City of the Damned
The DocksThe DungeonsThe GatehouseThe Guard TowerThe CitadelThe Cathedral
The CryptsHell's MawThe Graveyard
Episode 2
Hell's Maw
The CraterThe Lava PitsThe River of FireThe Ice GrottoThe CatacombsThe Labyrinth
The Great HallThe Portals of ChaosThe Glacier
Episode 3
The Dome of D'Sparil
The StorehouseThe CesspoolThe ConfluenceThe Azure FortressThe Ophidian Lair
The Halls of FearThe ChasmD'Sparil's KeepThe Aquifer
Episode 4
The Ossuary
CatafalqueBlockhouseAmbulatorySepulcherGreat StairHalls of the Apostate
Ramparts of PerditionShattered BridgeMausoleum
Episode 5
The Stagnant Demesne
Ochre CliffsRapidsQuayCourtyardHydratyrColonnadeFoetid Manse
Field of JudgementSkein of D'Sparil
Extra Episode
Fate's Path
Raven's LairThe Water ShrineAmerican's Legacy
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