A team of four Gemini 4 Argon agents defeated Minecraft's Ender Dragon after 27 hours and 14 minutes of play, according to a preprint posted October 15, 2026 by Google DeepMind researchers Maxence Faldor, Satinder Singh and Roberta Raileanu. The agents started in a randomly generated survival world on Easy difficulty.

The researchers placed the agents in a sandboxed Minecraft Java Edition 1.20.4 world with a single goal: defeat the Ender Dragon. Each agent controlled its own player through the open-source Mineflayer library and coordinated with teammates through in-game chat and shared memory. Nobody assigned roles or wrote game logic for them, and the agents planned, wrote and debugged every program themselves. Researchers could watch the run on a live dashboard and pause or stop it at any time, but the paper says they "had no cause to intervene."

Along the way the team wrote 2,783 programs and died 605 times. Monsters caused 351 of those deaths, and the dragon itself killed the players 69 times.…