A teleport trap can be built in the Trap space of the Dungeon in a player-owned house. It requires 88 Construction to build and when built, it gives 447 experience. The player must have a hammer and a saw in their inventory to build it.
The trap takes up 2 spots. Players who fail to dodge the teleport trap will either be teleported to the oubliette, if the house owner has one, or to the beginning of the dungeon. If you have multiple oubliettes then players who fail to dodge the trap will be sent to the most expensive oubliette in your PoH (or the one you built last if multiple oubliettes are equal value). Players who succeed in dodging the teleport trap will gain 20 Agility experience points.
By pausing immediately before it, and then running to the other side, players may pass the trap in one tick and therefore avoid it. This requires knowing the location of the trap. Initially the trap is undetectable, but after it is triggered it will have an "examine pitfall" right click option. Moreover it may only be placed on a square adjacent to the central 2x2 squares of a room, as shown. Therefore players may traverse the room safely by always using running over squares which may potentially hold a trap.
The teleport trap has a 12% chance of being passed at level 1, 47% chance at level 50, and an 82% chance at level 99. This is a linear relationship. It is thus affected if your stats have been drained (i.e. by a marble trap by 5, causing a reduction in 7% chance).
- ^ Jagex. Mod Ash's Twitter account. 24 May 2020. (Archived from the original on 14 April 2021.) Mod Ash: "The teleport trap has a 12% chance of being passed at level 1, and an 82% chance at level 99."