Valve added support for Sony's new DualSense Wireless Controller to the Steam Input API so you can use it to play Steam games.

"There will be an API that game developers will be able to call to say, 'Is this Steam Deck? If so, use these settings.'" ...

Valve announced Nov. 20 that an update to its Steam client means any game using the Steam Input API can now be played with the DualSense, the new controller for the PlayStation 5.

The PS5’s DualSense controller is now officially supported in Steam. This means that games using the Steam Input API will now recognize the controller and display the right button prompts, and ...