Gas Leak is a single page TTRPG about farting and getting away with it.
The PDF is well organized, with some, uh, evocative title art and a clean, readable layout.
Gameplay-wise, Gas Leak has a group of players each take a single turn describing how they cast doubt, obscure, blame, or otherwise suppress accountability for their fart. After each player narration, the group votes on whether they were successful.
Overall, this is a very short game and could work as an ice-breaker for a longer session. It's easy to play, easy to adjudicate, and is based around crude humor---not a lot of TTRPGs are, so if you're looking for that, this should be on your list.
Minor Issues:
-I think this game might benefit from a scenario roll table. The group coming up with the scenario is fine, but it means only the first player really has to think on their feet.
-The fart strength table feels like it has a 1-in-8 chance of just skipping someone's turn (if they get the 'no fart' result.) It might be better to have players pick their own fart strength, and get points based on its strength if they get away with it (i.e. successfully concealing a wet fart nets a full 8 points.)