Castle GreyHawk: The Thor Ragnarok of Old-School D&D Adventures From Back in the Day
Castle Greyhawk isn’t really just a module. Castle Greyhawk did for D&D what Ragnarok did for the Thor franchise. The overall premise is this: Extremely unusual monsters are emerging from the castle dungeons, and your party has been hired to put a stop to it. What made Castle Greyhawk unique was its use of breaking-the-4th-wall comedy that would have impressed even Deadpool.