Trufflez' Arcanum

Alchemy is the core of the mod, and the magical technology is meant to be automated: alchemy extracts energy materials that feed the machines. Wisps are living spirits that give the player abilities and help keep the balance of the world. Staves carry selectable foci, and a weapon and tool system works around them.

The mod also adds world generation, with resources, biomes, tree types and structures. Progression rests on exploration and crafting rather than scanning for research, and a special book gives hints and lore as the player goes on. The mod is incomplete and keeps adding blocks, items and worldgen features, so its content grows over time. It is open source under the GNU Lesser General Public License v3.0 only and runs on client and server, so the server and every player need it. Files are published for 1.18.2 only as the latest build, and the biome changes made since Minecraft 1.18 mean it is not compatible with other biome mods or datapacks.