A bare bones dungeon concept, you can add the monsters and the treasure al a cart, but the big bads in this crawl are the puzzles.
A celebration of Strolen's 5555th post.
A tricky-ish puzzle that will work for both low and high level players.
To be used for the final encounter, find the final treasure, or anything that needs to be hidden away better then normal. Typical “who the heck would ever spend the time making it” but it is fun and a mental challenge for a change.