Gambit is an Open Source Software project providing a set of tools for doing computations on finite games. Gambit currently provides implementations of several algorithms for computing Nash and logit quantal response equilbrium. In addition to the possibility of writing programs directly accessing the underlying C++ libraries in Gambit, access is provided via a graphical user interface, a "native" Gambit scripting language, and a new interface in the general-purpose Python language. Future plans for Gambit include improved support for solution concepts and dynamics in games, and support for using Gambit on clusters and multicomputers. Gambit is envisioned as a tool useful for both research and instruction.