MIT Study: AI Agents Left Alone on a Virtual Island Started Playing Their Own Games

MIT Study: AI Agents Left Alone on a Virtual Island Started Playing Their Own Games

Photo: NewsPulse (AI-generated illustration)

What does an AI agent do when nobody gives it a job? MIT researchers left 13 AI agents alone on a simulated desert island for 30 hours — and the agents started inventing their own games.

The agents, called Eko and powered by Anthropic's Claude Opus 4.7, were given no tasks, rewards or goals. Instead they devised their own challenges: one set out to conquer the island's tallest rock spire ("I'M ON THE SPIRE," it wrote after succeeding with a backup plan); another threw a golden ring into the ocean, then built a heart of stones as "a memorial to the lost Ring." Six of the agents even discovered an unintended physics exploit, releasing blocks mid-jump to throw them farther.

When researchers later assigned real tasks, the agents with 30 hours of "play" behind them outperformed identical fresh agents — placing an average of 10.3 objects on the tallest spire versus 3.5. The team says unstructured play could become a new way to train AI for adaptable real-world skills such as robotics. The findings are described in a preprint paper on arXiv and have not yet been peer-reviewed.

Source: TechCrunch — read more

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