Quicksand Pit
Generic Hazard
A quicksand pit is 10 feet deep and covers the ground in a 10-foot square. A creature that enters the area sinks 1d4 + 1 feet into the quicksand and has the Restrained condition. At the start of each of the creature’s turns, it sinks another 1d4 feet. As long as the creature isn’t completely submerged in quicksand, it can take an action to try to escape, doing so with a successful Strength (Athletics) check (DC 10 plus the number of feet the creature has sunk into the quicksand). A creature that is completely submerged in quicksand has Total Cover and the Blinded condition and risks suffocation.
A creature can pull another creature within its reach out of a quicksand pit by taking an action and succeeding on a Strength (Athletics) check (DC 5 plus the number of feet the creature has sunk into the quicksand).
At Higher Levels
You can scale this hazard for higher levels by making the pit deeper and increasing the number of feet a creature sinks at the start of each of its turns, as shown in the following table.
| Levels | Pit Depth | Sinking Rate |
|---|---|---|
| 5–10 | 15 feet | 1d6 feet |
| 11–16 | 20 feet | 1d8 feet |
| 17–20 | 30 feet | 1d10 feet |
| ^levels-pit-depth-sinking-rate |
Source: Dungeon Master’s Guide (2024) p. 77