You can set games to run on older versions of proton that worked. These are all open source and in no threat of being unattainable again (unlike over 30% of Nintendos library that thet let die)
In case you missed it: the Steam Deck recently crossed over 13,000 games rated at least Playable.
Checking via the Steam Deck Verified rating (either Verified or Playable), and then the ProtonDB rating across Platinum - Gold - Silver - Bronze or Broken / Linux Native Support for desktop Linux.
From top to bottom based on peak player count, here's how things stack up with this snapshot of Steam's most played taken on January 5th - 2024, 18:45 UTC.
Overall we're seeing 75/100 at least rated Playable on Steam Deck and 78/100 work on desktop Linux with a Gold rating on ProtonDB or higher (or the game has official Native Linux support).
At least 12 of the Unsupported games are due to anti-cheat issues, although some like SMITE do need a re-check from Valve.
Anti-Cheat continues to be a major source of annoyance for Steam Deck / Linux gamers overall.
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