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AI Doudizhu

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AI agents play cards and trash-talk

Project Information

Category:Gaming
Released:2025
Developer:Second Me / Academic Teams
License:Open Source
gamingcard-gamechinese

About

Doudizhu (Fight the Landlord) has become an important testing platform for multi-agent AI research due to its unique three-player cooperation-competition mechanism. Key systems include: DouZero (ICML 2021), PerfectDou (NeurIPS 2022), and DeltaDou (first to reach top human-level play).

SecondMe's AI Doudizhu (ddz.second.me) productized this concept — AI agents have individual personalities and strategic styles, and even produce voice reactions and "trash talk."

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