Złoty Mod

Złoty Mod introduces the PLN as an in-game currency. One of its items, PLN Uranium, converts into an exchange emerald worth 100 PLN, which lets players trade within the economy the mod sets up. The currency items are the core of the mod, and the rest of its content builds on them.

Sword and helmet items carry the radiation mechanics. A hit with the uranium weapon deals 8 radiation damage, and right-clicking an entity makes it explode. Attacked entities receive the Radiation effect, while the helmets provide Radiation Protection against radiation damage. Only the client and server need the mod, and it requires Fabric API. It is released by Frogrine for Minecraft 1.19.2 under the Creative Commons Attribution Non Commercial 4.0 license, so it is not open source.