An anonymous reader quotes a report from Ars Technica: For years now, Valve has been slowly improving the capabilities of the Proton compatibility layer that lets thousands of Windows games work seamlessly on the Linux-based SteamOS. But Valve’s Windows-to-Linux compatibility layer generally only extends back to games written for Direct3D 8, the proprietary Windows graphics API Microsoft released in late 2000. Now, a new open source project is seeking to extend Linux…








