Steam Deck - Wikipedia
… 4 The lack of Linux game availability during the lifetime of Steam Machines led Valve to invest development into Proton , a Linux compatibility layer to allow Windows–based games to be run on Linux without modification. …
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Steam (service) - Wikipedia
… 336 In August 2018, Valve released a beta version of Proton named Steam Play , an open-source Windows compatibility layer for Linux, so that Linux users could run Windows games on Linux directly through Steam. …
Valve Corporation - Wikipedia
… 74 In February 2022, Valve released the Steam Deck , a portable game system that runs on Linux-based SteamOS with the Proton compatibility layer that allows most Windows games on Steam to run on Linux without modification. …