Traps are hidden throughout the entire game(one may wonder who did :D), and are usually triggered by the unwary stepping into the same tile as the trap icon. There is a small chance of detecting nearby traps, enhanced by the percentage on a worn ring of protection which acts as a bonus and can be improved up to 100 with scrolls of blessing (-1 to +2 depending on cursed/blessed status) or enchantment (+5 to +15).

There is a chance to evade triggering most traps, and the levitation ability dramatically increases this rate. You may deliberately trigger a trap you evaded by using the Down Stairs key while standing on it.

Monsters may set off traps. Levitating ones won't drown in quicksand(unless probably captured by a net). Most monsters shrug off the effects and continue attacking you unobstructed unless stunned, trapped, or killed.

Icon Type Effects Aftermath
Arrow trap arrow Fires one arrow at you. If it misses, the arrow is added to your inventory. disappears
Roof trap collapsing roof The roof above caves in and buries that spot and several surrounding ones in rubble, destroying any items trapped underneath the debris. disappears
Ice trap frost A blast of ice destroys some potions, damages the non-cold-resistant and may damage other items. remains
Flame trap flame A gout of fire destroys some scrolls, damages the non-heat-resistant and may damage other items. remains
Lava trap lava Changes its tile to lava. Lava damages those who are not heat-resistant. transforms
Monsters trap monster Monsters invade a room from all sides, all of the same species. disappears
Mist Trap
mist Mist seeps out of the ground and may affect your character with:

- Curing all ailments (as per Blessed Potion of Curing)

- AC permanently modified up or down by 1(your skin is affected)

- Insanity(forced to move randomly for 20-30 turns)(your mind is affected)

- Decrease skill with a random throwing weapon(your dexterity is affected)

- Decrease strength(your strength is affected)

Trap spikes poison spike Poisoned spikes snap onto you. Damages you if you're not poison-resistant. disappears
Trap phase phase Transports you to a square bounded by rock on all sides. disappears
Trap pint pit A hole in the ground where you can't fight. Using a grappling hook or teleporting are quick escapes, but, given time, you can climb out without aid. remains
Trap quicksand quicksand A quagmire ensnares you. You will sink to your doom, unless you throw a grappling hook, teleport away, or terraform the earth beneath you. transforms
Trap stun stun Gas traps stun you for a few turns. disappears
Trap teleport teleportation A wormhole brings you to another random point on the level. If wearing a ring of locus mastery, you can choose your destination. remains
Trap door trap door A hidden passageway drops you into a lower level. Usually in the dungeon or the Halls of Grynr and rarely in the southern forest. remains
Trap water water Slams the doors shut & fills the room with water from ceiling vents on walls flooding inwards one square per turn. Swimming or Skidbladnir can help. disappears