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Door
It's an often missed rule that all dungeon doors are quite large, difficult for PCs to open, and easy for the dungeon's denizens to open.1) All dungeon doors MUST be rolled for in order to open. Up to 3 characters can try to open a standard 8' wide door in one check – each character rolls separately.
Base types:
| Type | Opening | Breaking | Spiking |
|---|---|---|---|
| Wood | 1 success | 1 turn, 3 WM checks | 1 spike holds 3-9 rounds, 2 spikes holds 3-9 turns |
| Stone | 1 success, chance reduced by 1 | 6 turns with tools, 3 WM checks/turn | Double spikes needed for above effect |
| Metal | 1 success, chance halved (rounded down) | Impossible without magic or special means | Triple spikes needed for above effect |
Modifiers:
| Door State | Open Modifier | Break Modifier |
|---|---|---|
| Stuck | Chance reduced by 1 | – |
| Sturdy | – | Takes 2x as long (with 2x WM checks) |
| Locked (wood) | Two simultaneous 1s required | – |
| Locked (stone) | Three simultaneous 1s required | – |
| Locked (metal) | Only possible with STR 18/91+ equivalent or magic | – |
| Barred | Only possible with STR 18/91+ equivalent or magic | – |
If modifiers cause an opener's chance to be reduced below 1-in-6, the door will either require multiple simultaneous successes or simply be impossible to open without magic.
Opening
First determine the base chance based on the type of door (above). Then apply any modifiers (also above).
STR 18/91+
For exceptional strength of 18/91 or higher which affords open chances of “1-4 (1)” or “1-5 (2)”,2) treat each of those as “steps” for purposes of reducing chances by 1. For example, “1-5 (2)” reduced by 1 would go to “1-4 (1)”, and “1-4 (1)” reduced by 1 would go to “1-4”.
After opening
Any character who assisted in opening the door is in the room or corridor beyond afterward.Ex3)
Failure
A failure to open the door means anything beyond the door is alerted to the attempt and cannot be surprised by the opening party.
Door checks can be made indefinitely until they succeed, each attempt taking 1 round. For every three consecutive failures, a wandering monster check is made.
Closing time
Dungeon doors always close at the end of the following round unless a character spends the round holding it open, during which time they cannot fight, cast spells, etc. Dungeon doors will also stay open if a monster wants it to stay open.Ex4)
Spiking
There are no official rules for this. The following system is suggested:Ex
- Spiking doors takes a number of spikes as indicated in the table at the top of this page.
- 1 round is needed per spike.
- Each spike triggers a wandering monster roll.
- Spikes are not recoverable. They are one-time use.
- Monsters can ignore spikes, regardless of the monster's size.
Duration rolls are made privately by the DM, similar to turning duration rolls.
1)
It's important to read all the dungeon door rules, which are found on DMG 97.
2)
PHB 9.
3)
Without a rule like this, undesirable gameplay arises where fights may happen in doorways, or questions of character position will arise. With this rule, positioning is clear, and encounters can begin inside of the room proper.
4)
DMG 97 says, “all doors are hard to open and hard to keep closed or open for player characters”, and this rule simply adds a definitive number to it.
door.txt · Last modified: 2024-02-21 05:29 by poems
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