40 D&D Trap and Treasure Ideas for Any Dungeon

Traps

Use traps to make players look before they leap, not to punish them. Every trap should have a tell.

• Poison dart trap — a faint click before the darts fire.
• Collapsing ceiling — cracks in the masonry above the corridor.
• Hidden pit (20 ft) — a slightly different floor tile.
• Glyph of warding — a shimmering rune barely visible in torchlight.
• Spear from the wall — a pressure plate near the door.

A trap with no tell is just a random damage roll. A trap with a tell is a puzzle.

Treasure

Treasure works harder when it's specific to the dungeon:

• A rusty chest with 40 gp (and a loose coin that jingles when moved).
• 3 healing potions in a shattered alchemist's shelf.
• An unidentified magic ring — identify it later, or risk it.
• A cache of 120 gp hidden behind a false tomb slab.
• A finely crafted longsword still in its scabbard.
• A trapped coffer: 50 gp and a poison needle.
• A scroll of protection wedged in a cracked altar.
• A sack of gems worth 200 gp.
• A cursed idol — do not touch, but someone will.
• A knight's sealed will, naming the dungeon's original owner.

Scaling by tier

Tier	Monster example	Treasure flavor
1	goblins, skeletons	copper, rations, a dull dagger
2	bandits, ghouls	silver, a single potion
3	wraiths, owlbears	gold, a magic trinket
4	vampire spawn, mimics	a magic item, a clue
5	young dragon	the hoard, the MacGuffin

Need a full layout to drop these into? Generate a dungeon and replace the rooms you don't like.