An Update has been rolled out to beta state for Steam, with notes saying that “PS4 DualShock 4 Controller” support has been added to Steam configuration. DualShock 4 will have the same sort of customization and configuration support as Steam Controller, including native API support. For now it’s in beta, there may be few issue with it mapping gyroscope and track pad to mouse controls. Here’s the list that includes all patch notes relating to the controller. Added Steam Configurator support for PS4 Dual Shock Controller. Note that this is a beta release. Enable in Big Picture settings Add/Test Controller settings. When enabled, PS4 controllers will have access to the same sort of customization/configuration support as Steam Controllers, including native API support. ...