This replaces the random dungeon generator from AHQ.
If playing solo, please note that the per-turn check for traps or wandering monsters have been subsumed into these charts.

d12	Passage Length
1	No length
2-4	One section
5-10	Two sections
11-12	Three sections

2d12	Passage End
2-3	Another passage
4-8	Dead End
9-11	Right Turn
12-14	T-Junction
15-17	Left Turn
18-19	Stairs Down
20-22	Stairs Up
23-24	Crossroads

2d12	Passage Contents
2-12	Roll twice more; further 2-12 results are ignored.
13-14	Obstruction in one square (rubble, pillar etc)
15-16	Door
17	Locked Door
18	Door and Sentry
19-20	Wandering Monsters
21-22	Switch
23-24	Adjoining Section; create section as if exiting a room and place alongside. This can create interesting double-corridors etc.

d12	Switch Activation Result
1-2	No visible effect.
3-6	Unlocks a locked door.
7-10	Locks an unlocked door.
11	Trap activated in adjacent section.
12	Trap activated at switch (use Chests column.)

If a door is switched, it will be the nearest one of the correct type (locked/unlocked).
Further manipulations of the switch will 1-6; have no effect, 7-12; repeat the same effect on the same door/section.

d12	Room Type
1-6	Normal Room
7-8	Hazard Room
9-10	Monster Lair
11-12	Quest Room

Remember to furnish the room.

d12	Room Doors
1-4	No doors
5-7	One door
8	One locked door
9-10	Two doors
11	One locked door, one normal door
12	Two locked doors

Doors from passages always connect to rooms.
Doors from rooms are connected to a room or a passage (50/50 chance).

Locked doors require a key to open, or they may be bashed down:
Bashing down requires a hero to pass a strength test, which may only be attempted once. If a 1 or 12 is rolled, wandering monsters appear. Any monsters that wander in, and any monsters in the revealed section get +3 on their surprise roll.

d12	Secret Door Search
1	No door found. Wandering monsters appear.
2-7	No secret door found.
8-12	Secret door found.