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open_spiel
C++

open_spiel

OpenSpiel is a collection of environments and algorithms for research in general reinforcement learning and search/planning in games.

by google-deepmind · GitHub
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cppgamesmultiagentApache-2.0C++
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Explore and test different game scenarios using various learning and planning strategies for AI.

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5.34k5.33k
2026-07-152026-08-31
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📄 About

OpenSpiel is a collection of environments and algorithms for research in general reinforcement learning and search/planning in games.

open_spiel has 5.3k stars on GitHub. It has been forked 1.2k times. open_spiel is written mainly in C++. It has been in active development since 2019. open_spiel is available under the Apache-2.0 license. Its main topics are cpp, games, multiagent, python.

Frequently asked questions

What is open_spiel?

OpenSpiel is a collection of environments and algorithms for research in general reinforcement learning and search/planning in games.

Is open_spiel open source?

open_spiel is an open-source project. It is released under the Apache-2.0 license.

Is open_spiel free?

Yes. open_spiel is free and open source — you can use, modify and self-host it.

What license does open_spiel use?

open_spiel is available under the Apache-2.0 license.

What language is open_spiel written in?

open_spiel is written mainly in C++.

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