|Get It Here|
One thing I love about this OPD is that the dungeon itself is a puzzle that must be solved in order to reach the final reward, or even to escape as the entry portal disappears once the party enters the dungeon. At the risk of sounding like an idiot, I tried to figure out navigating this dungeon, using the keys, and had a devil of a time figuring out how it could be done. I forgot that a party could split up in order to activate or deactivate certain portals to allow travel from platform to platform. Still, it could be tricky having to get all the characters together again at the exit. I don't have the mental stamina to figure it out right now, but I am going to come back to it later. The "reward" is interesting, and a creative game master could drop this dungeon into their campaign to help the players deal with a powerful adversary (or gain a powerful ally).