Core Companion

Each companion is bound to the player who owns it and keeps a persistent identity. Its relationship with the owner builds over time through chat, goals and in-game settings, and it can meet unbonded companions from villages and earn their trust through conversation. Players choose a female or male setup and pick a start mode for each world. The companion reacts to world events, follows its owner, stays nearby, helps with tasks and manages items through a planner.

Inventory handling is built in. A backpack adds equipment slots, and a companion inventory screen shows a rotatable 3D preview. The companion can hold and use items, transfer, drop, deposit and sort them, and after death it paths back to the death spot to recover dropped items with its NBT intact. Players can also address it with vanilla commands through a configured name alias.

The mod depends on Fabric API and Geckolib, and Mod Menu is optional. Core Companion is published for Fabric only, for 1.21.8 and 1.21.11 under the MIT License, and it is not open source. Client and server both need the mod. The optional voice, TTS and vision features and Baritone-powered world actions extend what the companion can do. It runs a local Ollama language model alongside Minecraft, and on first join it sets itself up by choosing a local AI model that fits the hardware, so no config file needs editing. The mod is an early release, and some features are experimental.