Beat Minecraft with four autonomous agents and no human help

A Google DeepMind team let four Gemini 4 Argon agents loose in a random Minecraft world; in 27 hours they wrote 2,783 programs, died 605 times and killed the Ender Dragon.

Done withCustom agent· Oct 18, 2026

What they did

A Google DeepMind team, credited as Faldor et al., dropped four agents running on Gemini 4 Argon into a randomly generated Minecraft world. They gave them no roles, no strategy and no game-specific tools, and no human stepped in during the run. The agents acted by writing JavaScript programs to control the game, talked to each other in chat, split up tasks on their own, warned each other about threats, picked up items from teammates who had died and logged their mistakes in a shared memory. The harness is the team's own research setup.

How it went

The agents beat the game by slaying the Ender Dragon in one fully autonomous run lasting 27 hours and 14 minutes. Over that time they wrote 2,783 JavaScript programs, exchanged 229 chat messages and died 605 times. The report puts the cost of the whole session at $1,620 at the standard Gemini 4 Argon price due in 2027.

Worth knowing

This is a research result reported by The Decoder, not a hobbyist setup you can install. The deaths count shows how much trial and error a long autonomous run needs, and the cost figure uses a price that does not apply yet.

Try it

With Custom agent· 5 parts to fill in

You are one of [number] agents playing [a game with a scripting API] together in a fresh world, with the goal of [finishing the game]. Act by writing small programs against [the game's API], and keep a shared memory file where every agent records what it tried, what failed and why. Agree on who does what through the team chat, warn the others about threats, and recover items from any teammate who dies. Stop when the goal is reached or after [hours], and write a summary of programs written, deaths and the main mistakes.

Square brackets are the parts to fill in. The prompt is ours; the story is theirs.

Where they said it

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