Alchemical

Unlike vanilla potions, elixirs are never consumed. A player crafts a permanent flask, fills it with a brewed elixir and can drink from it repeatedly. Each drink grants a prolonged potion effect, and a cooldown applies before the next drink. The design is inspired by real-world alchemy, where a composition of several substances produces a final result.

Each elixir combines three ingredient categories, and every category shapes a separate part of the outcome. Essence Stones set the base effect, Tinctures shape it, and Catalysts fine-tune duration and potency. A player can load several Essence Stones and switch between the effects they produce, and the right combination of Tinctures and Catalysts determines the strength and length of the result.

The whole ingredient system is driven by datapacks. Pack authors and server admins can change what each ingredient does through data files, with no Java edits needed. Alchemical runs on client and server, so both the server and every player need it. Files are published for NeoForge 1.21.1, with 1.0.0 as the latest file, under the Creative Commons Attribution 4.0 license.