How Four AI Agents Slain Minecraft’s Ender Dragon Through Code and Cooperation

A lengthy game challenge

The agents were assigned to defeat Minecraft’s Ender Dragon in a survival world. They completed the task after just over a day of cooperative gameplay, at a token cost of about $520. The paper describes this as the first end-to-end autonomous completion of Minecraft by AI agents, using the standard Mineflayer library without pre-scouted seeds or human-written, game-specific tools.

Coding actions through Mineflayer

The agents did not operate game characters by viewing pixels or pressing keys. Instead, they wrote and ran short JavaScript programs through Mineflayer, a JavaScript API for creating Minecraft bots, then used text returned by the game to guide their next actions.

In all, they produced 2,783 programs. The paper frames the achievement as a demanding coding and coordination exercise, rather than simply a demonstration of combat skill.

Teamwork and repeated setbacks

The researchers say the agents exchanged 229 messages before winning and developed ways to share work, despite receiving no specific instructions about team roles. They also reported successes and failures as they coordinated their efforts.

The agents died 605 times, mostly to monsters, despite playing on Easy mode. About 22% of their programs ended in errors, and they spent nearly 14 hours working out how to defeat the final boss.

Questions beyond the game

The paper argues that long-running coding and coordination are relevant to complex software engineering and enterprise work. Those abilities could support broader automation of tasks traditionally done by people. The article also raises concerns about how automation’s gains might be distributed, amid wider criticism of AI industry practices and efforts to add AI to many kinds of software.