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A new update for the Proton Experimental branch has dropped, and it has some nice improvements for multiple different games, as well as integrating the new Proton 9.0 into the layer! With Proton 9, we have all of the fixes and updates that are being tested in the beta. We also have Hero's Land and Onimusha: Warlords now playable, Halo Infinite won't crash during its initializing data stage, Greedfall's video playback has been fixed, and Wine-Mono has been updated to 9.0.0.

The update should be downloaded automatically, but if you haven't downloaded Proton Experimental yet, you can do so by searching it in the store on your Steam Deck and downloading it like a game. You can then find it in your compatibility tab of games when you go to force Proton Compatibility.

Proton Experimental Update 2/26/24 Changelog:

  • All changes from Proton 9.0.
  • Now playable: Hero's Land, Onimusha: Warlords.
  • Made Helldivers 2 work more reliably on different setups.
  • Fixed Halo Infinite somtimes crashing during "initalizing data".
  • Fixed Russian language rendering in Brothers: A Tale of Two Sons launcher.
  • Fixed green stripe in Greedfall video playback.
  • Fixed launch failure with STORY OF SEASONS: A Wonderful Life configuration tool.
  • Updated Wine-Mono to 9.0.0.

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Noah Kupetsky
A lover of gaming since 4, Noah has grown up with a love and passion for the industry. From there, he started to travel a lot and develop a joy for handheld and PC gaming. When the Steam Deck released, it just all clicked.
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