Phoronix: Steam Adds Support For 64-bit Linux Games to the Steam overlay
Valve has added support for the Steam overlay to support 64-bit Linux game titles.
With today's Steam client update, the Linux version is now able to render the overlay over 64-bit games. Previously, only 32-bit versions of games had this feature.
Other Linux changes in today's update include a fix for finding Steam client skins, a crash when looking at community images, the Linux Steam overlay not restoring the proper mouse cursor, and a resource leak leading to graphics corruption. This update also has Big Picture improvements and other general changes and fixes.