Browsing the source code
You can find releases of the full GAMBIT package and standalone releases of its modules in the download section of this page.
The latest and greatest version of GAMBIT, along with a full revision history, instructions and examples, can also be found on GitHub, in the various release forks of the GAMBIT git repository listed below.
If you want to test GAMBIT locally without installing it, Sebastian Liem has kindly provided a Docker installation. Just download docker for your particular operating system, and run the following in the command line
docker run -it sliem/gambit
This will give you a bash shell with GAMBIT installed and ready to run. Note that the download in this case is around 10GB. This service is currently not maintained by the GAMBIT Collaboration, but if it proves popular we may decide to do so in the future.