PoopSky

A player can select an Air Toilet world type when creating a new world, which generates an own skyblock island. Sneaking on a block makes the player defecate onto it, and poop blocks respond to bone meal style effects. A toilet filled with a glass bottle yields a urine bottle, and feeding a chicken returns a water bottle. Injecting urine in a Compost Urn produces fecal liquid, which turns into water when heated and reacts with other fluids to form clay, netherrack and magma blocks.

The content extends further into weapons, armor, food and potions. Brewing senna leaves creates a Fecal Incontinence Potion that forces affected entities to defecate, and the Taboo Set includes Milos Sword, crafted from fecal materials. The PoopMaker Villager sells poop-related items and the Gourmet Villager sells poop-related food and music discs. The Toilet Linker Poop Scepter connects two bound toilets across dimensions for instant transport of entities and items. PoopSky runs on client and server, so the server and every player need it. It is published for Fabric and NeoForge for 1.21.1, with files also listed for 1.21, and is open source under the MIT License.