As announced here, CodeWeavers now offers a new version 8.0 of CrossOver Games, which allows Windows games to be played on Mac and Linux PCs without Windows. The Change Log outlines what's new, including support for Left 4 Dead and the Steam version Tales of Monkey Island and fixes and enhancements for Half-Life 2, Team Fortress 2, Spore, Guild Wars, and more. A trial version is available.