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AI Minecraft Modmaker
AI Minecraft Modmaker: Terminal AI agent builds structures and writes datapacks in Minecraft using ghost previews and single-step undo.
Mortar is an AI agent that operates in the terminal to construct buildings and write datapacks directly inside Minecraft worlds. A companion mod or plugin allows the agent to read the surrounding terrain, generate a see-through ghost preview for inspection, and place blocks only after confirmation. It works with free local models via Ollama as well as cloud models like Claude, GPT, or Gemini. The tool supports Java Edition through Fabric or Paper, and Minecraft on Rust via Horizon. It includes features like material lists, structure exports, custom rule files, and a transaction-based undo system.
AI Minecraft Modmaker at a glance
Key features
- Terminal agent for building and datapacks
- Ghost preview of structures before placement
- Single-step undo and redo transactions
- Automatic material list generation
- Export to .litematic, .schem, and .nbt formats
- Rule enforcement via local markdown files
- Support for local Ollama models and cloud models
Use it for
- Constructing buildings and structures from text descriptions
- Writing Minecraft datapacks, functions, and recipes
- Exporting generated builds to schematic formats
- Calculating required building materials and stacks
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