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RuneScape Bench: MMOs for Agents | Max Bittker - YouTube

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RS-sdk is a 2026 project by Max Bittker that turns LostCity into a testbed for new AI experiments. LostCity is an open source implementation of the RuneScape. This project taught him about how to design libraries for coding agents, how to build and think about evals, and the world of LLM post-training. There were also lessons in game design, simulated economics, and has even been a testbed for exploring the future of multi-agent systems, when agents are tasked with trading and trusting one another in a shared world.  Max Bittker is a game designer and a founding member of Websim — he's…

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