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'''Proton''' is an open-source [[:Category:Compatibility layers|compability layer]] for running Windows-only [[wikipedia:Steam_(software)|Steam]] games on Linux. Proton is based on [[Wine]] and additional components. It requires zero configuration for whitelisted games, just launch the game the same way you would launch a Linux native game on Steam. Proton was revealed to the public 21st august 2018 and at launch 27 titles was officially whitelisted <ref name="protonannouncement">https://steamcommunity.com/games/221410/announcements/detail/1696055855739350561</ref>. A lot more is compatible and can be played by changing a switch in Steam settings(head to the Steam Play options of your Steam Client and you'll be able to enable it for all games.). See this unofficial [https://spcr.netlify.com/ compatibility list] for user reported working games. Since it's open-source it's also possible to run outside of Steam.