Part of my AD&D House Rules, Part 4 - Restocking and Negative Hit Points
Restocking Adventure Sites and Lairs
Restock your dungeons! The world keeps on moving even if the player characters do not. Those dungeons that had all 30 rooms cleared all the way to the 140 room dungeon floor do not stay empty. Opened dungeons do not necessarily have their treasure remain and someone might have heard of of the players haul and gone after some of it themselves.
As written in B2 - Keep on the Borderlands:
EMPTIED AREAS: When monsters are cleared out of an area, the place will be deserted for 1-4 weeks. If no further intrusion is made into the area, however, the surviving former inhabitants will return or else some other monster will move in. For instance, a troll might move into the minotaur's cave complex (I.), bringing with him whatever treasure he has.
Vague, but this should be enough for a dungeon master to take the idea into account for developing a system. There may be no real need for codification but it's nice to have a reliable system. This is how I do it, which might be of use to someone with no better system. There might be typos as this has been rewritten three times from my scratch notes, but I think I shook out the bugs.
For my game, to start, roll a D100 each interval (described below):
Restocking Table
- 1-40 One encounter from the local hex random encounter table moves in to an emptied floor.
- 41-50 One encounter restocks from it's original type and number appears in a cleared area.
- 51-60 Two encounters from the local hex random encounter table moves in to an emptied floor.
- 61-65 One encounter restocks from it's original type and number appears in a cleared area and one encounter from the local hex random encounter table moves in to an emptied floor.
- 66-75 Three encounters from the local hex random encounter table moves in to an emptied floor.
- 76-80 One encounter restocks from it's original type and number appears in a cleared area and two encounter from the local hex random encounter table moves in to an emptied floor.
- 81-100 No restock.
For example, if you cleared the first floor (or the entire thing for single floor small dungeons), you would roll your encounters which would be weighted already. I only reroll the physically impossible. For example, if the dungeon is nothing but 10' corridors in and out, a massive dragon won't have moved in. Using the chart from MM2 or anywhere really:
Say you rolled a 68. Then rolling for the two encounters the results come up as 7 and a 6 on week one (plus a room restocked by the original inhabitant type), a green dragon (1 appearing, treasure type H) would take up a cavern entrance, while a giant boar encounter (2-8 appearing, no treasure) would lair up in the dungeon proper.
Next week, the roll comes up as 33, and the encounter of 8 is rolled giving a Kobold encounter (40-400 varying treasure) and from there, you practically had a dungeon restock write itself. Having analysis paralysis about where to place these encounters can simply be resolved randomly (for example 20 cleared room options, just roll a d20), but a lot of it will make a lot of sense when thinking about 'where would 158 kobolds shack up in here?'
Mega Restocking Table
- 1-40 Two encounters from it's original type and number are restocked per floor.
- 41-50 Two encounters restocks from it's original type and number and one encounter of an non-faction monster appears per floor.
- 51-60 Two encounter restocks from it's original type and number and two encounters of an non-faction monster appears per floor.
- 61-65 Three encounters restocks from it's original type and number and two encounters of an non-faction monster appears per floor.
- 66-75 Three encounters restocks from it's original type and number and three encounters of an non-faction monster appears per floor.
- 76-80 Three encounters restocks from it's original type and number and three encounters of an non-faction monster appears per floor and one NPC encounter has taken up territory in a cleared room.
- 81-100 No restock.
Intervals
Lairs and Sites (1-19 rooms)
1) Roll on the Restocking Table for rooms cleared over 4 weeks from last visit.
2) Roll for d4 rooms affected, 1-in-6, another party got there first (95% looted, 5% still in the act of looting - generate NPC party) 4 weeks from last visit.
3) If the need to generate an NPC party, generate one, and they will always be the ones who looted if looting happened.
Small dungeons (20 to 40 rooms)
1) Roll on the Restocking Table for rooms cleared over 1-2 weeks from last visit.
2) Roll for d6 rooms affected, 1-in-6, another party got there first (90% looted, 10% still in the act of looting - generate NPC party) 1-2 weeks from last visit.
3) If the need to generate an NPC party, generate one, and they will always be the ones who looted if looting happened.
Large dungeons (41+ rooms)
1) Roll on the Restocking Table for rooms cleared over 1 week from last visit.
2) Roll for d8 rooms affected, 1-in-6, another party got there first (65% looted, 15% still in the act of looting - generate NPC party) 1 weeks from last visit.
3) If the need to generate an NPC party, generate one, and they will always be the ones who looted if looting happened.
Megadungeons/Gigadungeons/Super Dungeon (100+ rooms)
1) Roll on the Mega Restocking Table for rooms cleared over 1 week from last visit.
