Thermite

A player who gets too cold or too hot starts taking damage, and the mod offers ways to keep the temperature near neutral. The base value comes from each biome's vanilla temperature, so modded biomes are affected as long as their temperature is set. Rain, snow, nighttime and entering water all cool the player down, while a fire protection enchantment lowers heat by 0.5 per level and fire resistance blocks heat damage entirely.

Leather armor can be combined with wool cloth in a crafting table to add warmth, up to twice per armor piece. Ice juice, a frozen item that acts like packed ice and cools the player by 3 when nearby, slowly melts in warm biomes. Fireplaces can carry their smoke above brick, cobblestone or stone brick walls like a chimney. A thermometer held in the offhand opens a display with the exact temperature, which is a unitless value where 50 is the most neutral.

Thermite requires CompleteConfig and Fabric API, and Roughly Enough Items adds recipe lookup for ice juice. It is a client and server mod, so the server and every player need it. The mod targets Minecraft 1.20.1 only, with the latest Fabric file, 5.0.0, dated 2024-02-24, and is released under the MIT License as open source. It is compatible with Fabric Seasons, so the current season also affects temperature.