Wow, excellent use of graphics and interesting puzzles. It is very old school style - the dungeon existing mainly as a test, with insta-death being common. Since you cite Tomb of Horrors as an inspiration, that part is not too surprising, and I would hope PCs going in would know this.
This is an excellent treatment of the Giant Monster vibe, apart from the creatures as deadly contaminates being as strongly put as they being a source of food/fertilizer. Though, given the low value of the individual in the Cosmic Era I guess they are not necessarily at odds. Go to Comment
You can change it back to private in work if you must, but adding an acknowledgement to the original source should be fine. Your take is a bit different so does not need to be cast away into the darkness :) Go to Comment