link: https://www.planetminecraft.com/jam/retro_is_nostalgic/
The retro jam is a jam for mc (but you can make a game on scratch remixing this project that's retro like) and is on mc planet. you create a world in 1.12 or below (srry you can only change versions in java) and play it or build in it (create a tour if your sharing your project on scratch using screenshots other wise share it as a world on mc planet and make the world downloadable) (this is messy lol)