SecondBrain

A Fabric mod that brings intelligent NPCs to your minecraft world. Create player-like characters controlled by LLMs that respond to your chat messages and perform basic player actions. > **State of Development**: (12.09.25) working on [this](https://github.com/sailex428/SecondBrainEngine) to bring more capabilities to the NPCs. then reworking functioncalling stuff... ## Requirements - **Minecraft Version**: 1.21.1 - **Dependencies**: [fapi](https://github.com/FabricMC/fabric), [owo-lib](https://modrinth.com/mod/owo-lib) on client and serverside - **Running Ollama server OR Player2 App** ## Mod Installation 1. **Download the Mod**: - Get the latest version of the `SecondBrain` mod from the [Modrinth](https://modrinth.com/mod/secondbrain) page. 2. **Install the Mod**: - Place `secondbrain.jar` in your `mods` folder on your minecraft fabric server and client. 3. **Launch Minecraft**: - Start the Minecraft client and the server, and you're ready! ## Usage with Ollama >Note: Player must be an operator to execute the following commands ### GUI (New) - Open the gui with the `/secondbrain` command and create/spawn, despawn/delete or edit the NPCs there. - Also edit the base configuration there. ### Commands (Deprecated) >Warning: This command uses default ollama/openai settings! 1. **Spawn NPCs**: - Use the `/secondbrain add ` (currently only ollama is supported) command to create an NPC. (Example: `/secondbrain add sailex428 OLLAMA) 2. **Remove NPCs**: - Use the `/secondbrain remove ` command to remove an NPC from the game world. **Interact with NPCs**: - Just write in the chat to interact with the NPC. - ## Setup Ollama ### Ollama (Local LLM) 1. **Download Ollama**: - Visit [Ollamas Website](https://ollama.com/) and download the installer for your operating system. 2. **Install and Run Ollama**: - Follow the setup instructions to install. - Start Ollama and ensure it's running in the background. 3. **Connect to the Mod**: - Use the gui to create/edit an NPC and put in the address to your ollama server (complete url with http://...; if you're running your ollama on your local pc then you can just use the one that's already typed in) ## Usage with Player2 App The responsiveness is not yet optimized for Player2! >The mod will automatically sync the selected Characters from the player2 App to NPCs in your singleplayer world. If you updated a description/name in the player2 App you can sync these changes with the command `/secondbrain player2 SYNC` It's not possible to change any configs from the Character with this mod. **Interact with NPCs** - Write messages in the chat or directly to a specific NPC - Press and hold alt (win) or opt (macOS) key to talk directly to the LLM/AI - Activate Text-To-Speech for any NPC in the config gui to hear the LLM/AI output ## Setup Player2 1. **Download Player2 App** - Visit [player2's website](https://player2.game) and download the App for your operating system. 2. **Start the App and select Characters** - Start the downloaded App and select the Characters you wanna use as NPCs ## License This project is licensed under the [LGPL-3.0](https://github.com/sailex428/SecondBrain/blob/main/LICENSE.md) ## [Disclaimer](https://github.com/sailex428/SecondBrain/blob/main/DISCLAIMER.md) ## Credits This project utilizes components from the following projects: - [fabric-carpet](https://github.com/gnembon/fabric-carpet) - [automatone](https://github.com/Ladysnake/Automatone) - [player2](https://player2.game) Thank you to the developers of these projects for their amazing work!

sailex

SecondBrain

HudEnhancer

BlockRandomizer