Hey!
We are developing in Unity for over a year, but this is our first game jam.
At the beginning, we had no idea for the topic, but then something came in. We made a 2D platformer based in age of cavemans, which is featuring a few bugs (mechanics) that you must use in order to complete the game.
Feel free to rate it: https://itch.io/jam/wowie-jam-2/rate/552654
Thanks!