I'd like to mention that pretty much any and all games that are known to work on Linux also work on Solus (if LSI is off). I have a massive Steam library and I play various games over time randomly, from my experience I think Solus is a reliable way to ride with the metas of Linux gaming.
I've never advertised myself or looked for an audience but I've also been uploading all my Linux gameplay footage recorded from Solus to Youtube since like July now, a good 47 videos. All on Solus. It's a super fun hobby. And in its current state anything that works on other distros also work on Solus.
I'll try to start taking the time to post Solus specific "reports" of games here that weren't mentioned. My ProtonDB has over 130 reports but you there aren't many Solus users there it seems. When I get a new game I'll come post how it works here too. All I need now is PUBG, Hell Let Loose and Hunt Showdown (EAC linux borked) then I won't have anything to miss from gaming on Windows 😃
As it stands now, besides disabling LSI, there isn't a single "game fix" for Solus that I'm aware of that you don't also have to do on other distros. But I'll go ahead and list the ones that I personally know work on Solus and/or I play regularly. This isn't even half of my library just the ones I know work.
- AVA
- Ark Survival Evolved
- America's Army Proving Grounds
- Among Us
- Apex Legends (stuttery for the first few matches if you don't use the DXVK shader file but that's all distros)
- Arma 2/3 (haven't tried mods)
- Battalion 1944
- Ballistic Overkill
- Bastion
- Battlefield 4/5/1/Bad Company 2 (2042 is borked on Linux, BC2 has Punkbuster wonkiness but usually works)
- Black Mesa (Native performs badly for me, Proton is good)
- Brawlhalla
- CRSED (breaks often despite being native but currently works)
- COD Black Ops 2 / MW2 / World at War
- Celeste
- Chivalry Medieval Warfare
- CSGO
- Creative Destruction
- Dark Souls 1/2/3 (2 or 3 didn't carry saves over for me, I had to get them from Steam cloud for some reason)
- DOOM / DOOM Eternal
- Dandara
- Day of Defeat Source
- Day of Infamy (Proton > native)
- Dota 2 (known to perform terribly on Linux, broken Vulkan)
- Elden Ring
- Fistful of Frags
- GMOD
- GTAIV / V (LSI breaks installation of IV)
- Halo Infinite / Halo Reach MCU
- Hired Ops
- Hollow Knight (Native doesn't carry saves over for some reason, but Proton does)
- Hue
- Insurgency 2014 (requires rename tweak)
- Insurgency Sandstorm
- Isonzo
- Knockout City
- Medal of Honor 2010
- Metro 2033
- Mixcraft Studio (haven't checked this in years, and I wasn't using pipewire at the time so idk, replaced it with Bitwig)
- Mortal Kombat Komplete Edition
- Muck
- Multiversus
- Natural Selection 2
- Nexuiz (bots)
- Ori and the blind forrest / will of the wisps
- Payday 2
- Pine
- Pirates Vikings and Knights
- Planetside 2
- Quake Live
- Quake Champions
- Red Orchestra 2 / Rising Storm 1 (shows annoying prompts every launch but works)
- Resident Evil (last I played Protonfix was required, not sure about now)
- Resident Evil Village
- Retail Royale
- Rocket League
- Star Wars Battlefront 2
- Shatterline
- Saints Row 2 / 3
- Sonic Adventure 2
- Splitgate
- Squad
- Street Fighter V
- Super Animal Royale
- TF2
- Cycle: Frontier
- Elder Scrolls V Skyrim
- Lord of the Rings Online
- Witcher 1 / 3
- Unturned
- Verdun / Tannenburg
- Void Bastards
- Warframe
- Yoku's Island Express
- Yooka Laylee