publish: true
aliases:
- Random Obstacles; Obstacles
created: 2026-03-09T12:15:34.382-04:00
modified: 2026-03-09T12:15:34.382-04:00
published: 2026-03-09T12:15:34.382-04:00
tags: - ttrpg-cli/compendium/src/5e/dmg
cssclasses: - json5e-note
obsidianUIMode: preview
Random Obstacles; Obstacles
Source: Dungeon Master’s Guide p. 296
Obstacles
| dice: d20 | Obstacle |
|---|---|
| 1 | Antilife aura with a radius of 1d10 × 10 ft.; while in the aura, living creatures can’t regain hit points |
| 2 | Battering winds reduce speed by half, impose disadvantage on ranged attack rolls |
| 3 | Blade barrier blocks passage |
| 4-8 | Cave-in |
| 9-12 | Chasm 1d4 × 10 ft. wide and 2d6 × 10 ft. deep, possibly connected to other levels of the dungeon |
| 13-14 | Flooding leaves 2d10 ft. of water in the area; create nearby upward-sloping passages, raised floors, or rising sta irs to contain the water |
| 15 | Lava flows through the area (50 percent chance of a stone bridge crossing it) |
| 16 | Overgrown mushrooms block progress and must be hacked down (25 percent chance of a mold or fungus dungeon hazard hidden among them) |
| 17 | Poisonous gas (deals 1d6 poison damage per minute of exposure) |
| 18 | Reverse gravity effect causes creatures to fall toward the ceiling |
| 19 | Wall of fire blocks passage |
| 20 | Wall of force blocks passage |
| ^obstacles |