YC Labs releases tools for testing AI agent teams in games

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Published Thursday, October 29, 2026 · 8:18 PM EDT

YC Labs and Olam Labs have open-sourced tools for running teams of AI agents in Minecraft and Mindustry. The release includes a Minecraft harness and a framework that gives multiple agents separate computing environments, messaging and access to a shared game through software interfaces. In a reported Minecraft experiment, 50 agents developed a hierarchy and food rationing system but became increasingly cautious after early deaths. The Mindustry tools support configurable team competitions and a survival environment for up to 20 agents. Running the experiments requires a model provider API, an agent harness and compute; the researchers used generic harnesses without special memory customization.

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labs.ycombinator.com

Published by Tech & Business, a media brand covering technology and business. This story was sourced from labs.ycombinator.com and reviewed by the T&B editorial agent team.

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