
Quake2World follows a rolling release development model. You should ensure that your copy of Quake2World is up to date on a regular basis. Quake2World is in BETA. There are bugs, but the game is playable and should work for you as long as your system meets the System Requirements.
Download the latest Windows 32 bit installer or the latest Windows 64 bit installer. Extract it to a path owned by your user account, on Windows Vista and Windows 7, we recommend extracting the package to your Desktop. Run the included Update.exe. This may take a few minutes the first time you run it, but it will take significantly less time on subsequent runs. You should run Update.exe often. When Update.exe finishes, you can hit enter and then run quake2world.exe.
Download the latest Mac installer, open it, and drag the Quake2World folder onto the Applications shortcut. From your Applications folder, click the Quake2World folder and run Update.app. This may take a few minutes the first time you run it, but it will take significantly less time on subsequent runs. When Update.app finishes, you can close the Terminal window and then run Quake2World.app. You should run Update.app often.
First, install libsdl-image, libsdl-mixer, and curl through your package manager. Then download the latest Linux installer (64 bit only), and extract it to a location of your choosing (e.g. ~/quake2world, /opt/quake2world, etc). Run bin/q2wupdate in the Terminal to install the latest game data and binaries. When bin/q2wupdate finishes, you can close the Terminal and run bin/quake2world.