akkamaddi's Arsenic and Lace

Arsenic ore is derived entirely through the Fusion Furnace, which fuses rotten zombie flesh with skeleton bones and slime balls to distill minerals such as orpiment and realgar. Refining those starts a chain of events that produces ingots of refined arsenic. A rarely found ore is also part of the mod, and arsenic sometimes preserves Old Lace Shroud items from the dead originally interred.

The mod adds arsenic, arsenide bronze, arsenide gold and tenebrium metals, along with their tools and armor. Arsenic tools are brittle and cannot make armor, while arsenide bronze and arsenide gold alloys are strong enough for both. The mod requires Fusion and SimpleCoreLib, and it runs on client and server, so the server and every player need it. Files are published for Forge and NeoForge for 1.20.1, with older builds for 1.7.10, 1.16.5, 1.18.2, 1.19 and 1.19.2. The code is released under the GNU Lesser General Public License v3.0 only, so it is open source.