At the moment, Evolution RTS is not officially released, however you can grab the test builds (very stable) and play them vs other people online. Keep in mind that since Evolution RTS has not gone to beta yet, you may notice unit stats changing (sometimes drastically as we do more testing), units being added and other sorts of sweeping changes.

If you are using windows, you need to install the Spring Engine and Spring Downloader by visiting this page: http://springrts.com/wiki/Download

Just grab the latest version of the engine and use Spring Downloader to grab the latest test (or stable, if available) build of Evolution RTS. Additionally, Spring Downloader functions as sort of a Mini-Multiplayer Lobby. By clicking on the chat tab and then Evolution RTS you will be placed in the Main lobby chatroom for Evolution RTS.

If you are using linux (ubuntu), then just use these commands:

sudo apt-get install python-dev python-setuptools
sudo easy_install rapid-spring
rapid pin evo:test

To update (when a newer revision has been released) use this command:

rapid upgrade

Different distributions will need to transpose the above commands to the equivalent for their distro.