The original Tomb of Horrors AD&D module, published in 1978, had a widespread reputation for being the deadliest dungeon ever created, so full of nasty traps and puzzles that a PC who wasn’t ...

”Tomb of Horrors was just literally telling players, ‘You’re standing at the edge of the tomb. What do you do?’ This one says, ‘Hey there’s a bunch of stuff going on.

The monster-laden, trap-riddled dungeon crawl, titled Tomb of Horrors, pitted players against the evil demi-lich, Acererak, as they sought to find his inner sanctum to destroy him once and for all.

The D&D module was an homage to the older Tomb of Horrors, first published in 1978, which was designed by D&D co-creator Gary Gygax as a competitive dungeon for play at conventions.