mcbot.w42.eu

w42.eu

Minecraft robots that play vanilla survival on their own: wood, tools, a shelter before the night, food, iron, a wheat field by the water. The goal is a robot that lives through a week of game days without dying. A proof of concept, vibe coded, not reviewed by humans yet.

mon.mcbot.w42.eusign in

The dashboard: every run live and replayed, the land it has seen, a 3D view from its eyes, and what it plans and does. Sign in with GitHub or Google and ask to watch; mj41 approves.

What the robot sees

Screenshots of the viewer page, with the viewer's panels around the robot's view, from a kept test run. The robot's view is drawn by our own viewer, not the official Minecraft client; the textures are Minecraft's own, © Mojang Studios / Microsoft. Click for the full size.

The viewer page for run botday4off at tick 2998, with the robot's view and the viewer's panels around it.

Run botday4off (2026-10-15), day 1, tick 2998.

The viewer page for run botday4off at tick 11563, with the robot's view and the viewer's panels around it.

Run botday4off (2026-10-15), day 1, tick 11563.

The viewer page for run botday4off at tick 16414, with the robot's view and the viewer's panels around it.

Run botday4off (2026-10-15), day 1, tick 16414.

How it is tested

Each run starts a fresh vanilla server and lets the robot play; the clock moves on while it only waits for the night to pass. A new robot reaches a running test as a signed commit, built where it runs, and every run is kept, so it can be replayed and compared with the next one.

Source

go-mc26-kit: the bot framework the robots are built on, with examples. MIT
go-mc26: a Go library for Minecraft 26.x, generated from each release. MIT
mc26: the pipeline that extracts the data and generates the library, and the end-to-end tests. MIT

The dashboard and the test benches are private for now.