Gambit is the package for doing computation in (non-cooperative) game theory.

Gambit provides:

• Structures to represent games in extensive and strategic form
• Methods for building and modifying games
• Representations of mixed strategy and mixed behavior profiles
• Many algorithms for computing one or more Nash equilibria of games
• Facilities for computing quantal response equilibria and fitting QREs to data

How to get Gambit

Gambit's GitHub repository is at https://github.com/gambitproject/gambit.

Official Gambit releases are available from the releases section of the repository

Gambit offers the Python package pygambit, installable via PyPI.