Dungeon Trap Generator for D&D and TTRPGs

A good trap is a puzzle with consequences. A bad trap is a random punishment. The difference lies almost entirely in whether the players had any information they could have used - any tell, any sign, any reason a careful adventurer might have paused and looked closer. The trap that kills a character because they opened a door is just a door. The trap that kills a character because they noticed the dust pattern on the floor but decided to open it anyway is a story.

Trap design in dungeon architecture reflects the priorities of whoever built the dungeon and for what purpose. A wizard's tower is trapped differently than a dwarven vault, which is trapped differently than a tomb. A wizard traps the things they want to protect, often with elaborate mechanisms that reflect their specific magical interests. A dwarf traps access points with mechanical precision that has survived the dwarves themselves by three centuries. A tomb is trapped to prevent things from getting out as much as to prevent things from getting in - a distinction that matters when you realize the sarcophagus has a pressure plate under it.

Traps also age. A pressure plate that worked perfectly when it was installed might now be slightly visible due to floor settling. A tripwire might have been triggered by vermin and lies slack. Or the mechanism might have been maintained by something that lives here now, which raises the question of what that something is and whether it can be reasoned with.

The best traps are fair in retrospect. Players who were defeated by a trap should be able to identify, afterwards, what they missed. This is the difference between frustrating and challenging - and it is what separates trap design from simple damage dealing.