MINDGAMES: A Live Arena for Evaluating Social and Strategic Reasoning in Multi-Agent LLMs

Kevin Wang, Anna Thöni, Benjamin Kempinski, Bobby Cheng, Jianzhu Yao, Benjamin Finch, Leon Guertler, Viraj Nadkarni, Yihan Jiang, Aliaksei Korshuk, Alexander Buyantuev, Ilya Makarov, Siyuan Wu, Yu-Chi Cheng, Yan-Ru Ju, Ti-Rong Wu, I-Hsuan Chu, Yu-Yu Yang, I-Chen Wu, Yitian Huang, Qinlu Cao, Yiheng Sun, Yuhong Dai, Hongkun Yao, Jingxuan Fu, Jiwei Zhang, Hao Liao, Mossimo Ebeling, Govind Arun, Sadhvik Bathini, Mihir S Arya, Avinash Anish, Aditya Ranjan, Kirtana Sunil Phatnani, Paval KS, Vrushali Mehta, Aravind S, Nikhil Arora, Tanya Upadhyay, Amol Bandagale, Yuan Lu, ChunEn Hsiao, YuTing Lin, Arvin Chung, Jerry John Thomas, Mathieu Laurière, Leshem Choshen, Yoram Bachrach, Pramod Viswanath, Maria Polukarov, Cheston Tan, Tal Kachman, Atlas Wang

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@misc{wang-2026-mindgames-a-live,
  author = {Kevin Wang and Anna Thöni and Benjamin Kempinski and Bobby Cheng and Jianzhu Yao and Benjamin Finch and Leon Guertler and Viraj Nadkarni and Yihan Jiang and Aliaksei Korshuk and Alexander Buyantuev and Ilya Makarov and Siyuan Wu and Yu-Chi Cheng and Yan-Ru Ju and Ti-Rong Wu and I-Hsuan Chu and Yu-Yu Yang and I-Chen Wu and Yitian Huang and Qinlu Cao and Yiheng Sun and Yuhong Dai and Hongkun Yao and Jingxuan Fu and Jiwei Zhang and Hao Liao and Mossimo Ebeling and Govind Arun and Sadhvik Bathini and Mihir S Arya and Avinash Anish and Aditya Ranjan and Kirtana Sunil Phatnani and Paval KS and Vrushali Mehta and Aravind S and Nikhil Arora and Tanya Upadhyay and Amol Bandagale and Yuan Lu and ChunEn Hsiao and YuTing Lin and Arvin Chung and Jerry John Thomas and Mathieu Laurière and Leshem Choshen and Yoram Bachrach and Pramod Viswanath and Maria Polukarov and Cheston Tan and Tal Kachman and Atlas Wang},
  title = {{MINDGAMES: A Live Arena for Evaluating Social and Strategic Reasoning in Multi-Agent LLMs}},
  year = {2026},
  note = {arXiv preprint (NeurIPS 2025 competition report)},
  url = {https://arxiv.org/abs/2605.29512}
}