Proton Experimental updated to fix missing saves and a new Proton 10 Beta fixes gamepad breakage

Valve released two Proton updates just as the weekend hit, both containing some essential fixes for running Windows games on Linux / Steam Deck. So here's all that's new for Proton Experimental and the latest Proton 10 Beta.

The update for Proton Experimental was a small one but it has an important fix for potentially missing saves:

• Fixed issue where Steam Cloud downloads could interfere with new Proton prefix creation leading to missing Steam Cloud saves. If any saves are missing after Proton 10 use, check for directories containing corrupted_pfx in the name in your Steam Library - the missing files should be present there.
• Fixed some games using DirectStorage not working with Intel GPUs.

This is a good reminder that you should only be using Proton Experimental for testing or when you need the specific fixes included for certain games. Issues will appear since it's a testing area for Valve. Stick to the main numbered versions of Proton.

For the Proton 10.0-1f (beta) release it should hopefully fix up gamepads, for people who were reporting issues with them disconnecting during gameplay:

• Fixed issue where Steam Cloud downloads could interfere with new Proton prefix creation leading to missing Steam Cloud saves. If any saves are missing after Proton 10 use, check for directories containing corrupted_pfx in the name in your Steam Library - the missing files should be present there.
• Fixed Space Engineers crashing on a steam deck after changing controller setting with a fresh Proton prefix.
• Fixed gamepads randomly stopping working on some setups.

As a reminder that's all on top of what came in the initial Proton 10 Beta:

• Now playable (previously worked with Proton Experimental):
  • Batman: Arkham Asylum Game of the Year Edition
  • Black Ink
  • Factorio
  • Ignited Entry
  • Microsoft Flight Simulator 2024
  • MySims Kingdom
  • No Man's Sky in VR mode (regressed after a game update)
  • Rising Storm 2: Vietnam
  • Sniper Elite: Nazi Zombie Army
  • Soul Interface
  • THE KING OF FIGHTERS XIII GLOBAL MATCH
  • VIDEO GAME (924310)
  • Willful
  • X Rebirth VR Edition
• Fixed / improved video playback in:
  • Agony Unrated
  • All-Star Fruit Racing
  • Audiosurf
  • Bloodstained: Ritual of the Night
  • Gal*Gun 2
  • Greedfall
  • Indigo Park: Chapter 1
  • Omensight
  • SOULCALIBUR VI
  • TELEFORUM
  • Tintin Reporter - Cigars of the Pharaoh
  • Zero Escape: The Nonary Games
• Reinstated hack from Proton 7 that helped with SpellForce: Platinum Edition, NieR: Automata, Sekiro: Shadows Die Twice and DARK SOULS III crashing with monitors exposing too many possible resolutions.
• Improved performance in Dirt Rally 2.0.
• Fixed Final Fantasy XVI demo displaying driver warning on launch.
• Fixed Grand Theft Auto V Enhanced launcher hang and the game crashing on launch as well as not being possible to uninstall it via Steam.
• Fixed XCOM 2 erroring out when trying to connect to my2K.
• Fixed network issues in Hunt: Showdown 1896 after a game update.
• Fixed Rivals of Aether II, Stalker 2, The Axis Unseen, Beyond Handwell, Marvel Rivals, The Finals, Creatures of Ava crashing with Intel GPUs.
• Added support for game mods that load via custom dinput8.dll.
• Fixed input not working with Studio System : Guardian Angel.
• Fixed cursor not working in the menu of Amerzone: The Explorer's Legacy (1999).
• Fixed Deviator crashing with AMD GPUs shortly after launching.
• Fixed Warhammer: Vermintide 2 showing prerequisite installer on every launch.
• Re-enabled nvapi for Neverwinter, Star Trek Online and Champions Online.
• Fixed full screen mode in The Bright Star Of Seraph-Katis.
• Improved situation with audio crackling in Assassin’s Creed Shadows on Steam Deck.
• Improved reliability of Proton Prefix creation.
• Fixed Supermarket Together not detecting DLC on some systems.
• Fixed extras video playback in Shadow Warrior 2.
• Fixed VR mode in Evochron Legacy SE.
• Fixed non-Steam Battle.net installations.
• Fixed Sea of Thieves Xbox login window not working.
• Fixed graphics scaling in Master Magistrate.
• Fixed interface elements in Disney Epic Mickey 2: The Power of Two showing as solid green color.
• Included initial work on speech synthesis - requires manual installation of Proton Voice Files (steam://install/3086180), confirmed to work with The Thief, the Witch, the Toad, and the Mushroom.
• Fixed video playback in Twisted Sails.
• Improved video playback in Max: The Curse of Brotherhood.
• Added hack to allow Steam Overlay to function with EAC EOS games.
• Fixed CPU topology override issues on machines with more than 32 logical cores.
• Fixed Proton sometimes creating an empty window when running via XWayland.
• Fixed Marvel Rivals displaying OS/drivers out of date warning.
• Fixed desync issue with 60FPS AVPro videos in VRChat.
• Fixed intermittent freezing in Spirit Hunter: NG.
• Fixed The Finals crashing after a recent game update.
• Improved Ubisoft Connect behavior when switching between Proton versions.
• Improved video playback in Locoland on NVIDIA GPUs.
• Improved video playback in Microsoft Flight Simulator.
• Fixed Tiny Cauldron freezing when selecting some resolutions.
• Fixed various crashes affecting Final Fantasy XIV launcher.
• Fixed broken account creation in Final Fantasy XIV.
• Fixed Nioh: Complete Edition hanging on a black screen when skipping videos.
• Fixed Killsquad freezing on character selection screen.
• Fixed Dread X Collection 3 Bete Grise minigame.
• Fixed video playback in ATRI - My Dear Moments-.
• Fixed Dark and Darker not being playable after a game update.
• Updated libvkd3d-shader to vkd3d-1.15-179-g21e08955d3c3.
• Updated dxvk to v2.6.1.
• Updated dxvk-nvapi to v0.9.0.
• Updated vkd3d-proton to v2.14.1-153-ga7159b80e165.
• Updated wine-mono to 9.4.0.
• Updated Xalia to 0.4.5 and enabled it for The TakeOver, Floppy Heroes, Whiskered Away, Himno, Survirus, The Adventure of Ninomae Ina'nis.
• Rebased Wine on top of wine-10.0.
• Added Steamworks SDK 1.62 support.

Source: GitHub

How to get them?

They will both show up as an update in your Steam Downloads, if you have them installed. If not, search for Proton Experimental and Proton 10 in your Steam Library to install them.

See more in our guides section.