Biomes In Jars

Crafting a jar lets a player extract part of a biome from the world, and a filled jar can then be placed to bring that biome to another location. Extraction is permanent: the area that was extracted is left without its biome, which becomes dead, withered land unless the server sets the option that converts it to nothing. Players need an Empty Biome Jar before they can start extracting biomes, and the author advises care, since the extracted area cannot be restored from the same jar.

The mod is meant for survival and creative worlds, modpacks and multiplayer servers. A filled jar holds a limited number of uses, and the author text notes that the number of uses can be set. Some commands are available to server administrators, so a server can be started with the mod already set up and ready to play. Biomes In Jars needs Fabric API on Fabric, plus Geckolib and Konkrete on both loaders, and it runs on client and server, so the server and every player need it. The mod is published for Fabric and Forge across 8 release versions, 1.16.2 – 1.19.2, under a custom license that is not open source.