Friend-or-Foe-Fremesis

Friend Nemesis is a mob that players meet in the world. Approaching it opens a trade in which useless items can be exchanged for useful ones. Each trade is a gamble: the Fremesis draws from a First Tier pool and an output loot table, so the reward is unpredictable. The mob is meant to add a layer of risk and reward to an otherwise routine trading exchange.

Trading raises an internal rage meter. As rage grows, the Fremesis may flare up, trigger dangerous environmental actions or summon hostile mobs, with the intensity scaling to the rage level. Once the fifth deal is done, the mob disappears and the player is left with whatever those deals produced.

The mod is published for NeoForge only, across four game versions: 1.21.8 – 1.21.11. The server and every player need the mod installed. It is released under the MIT License and is not open source. Players who want the full set of animations should also install the animation APIs the author notes, since the mob's animations depend on them.