

No amount of proton version swapping allowed me to launch

gamemoderun %command%
Personally, I had the game crash when I tried to build something. Once I added the argument, the problem was solved, now I can play perfectly.

The game works extremely well which I didn't expect lol
You can alt-tab but you can't resize the windows that you alt-tab to.
Saves from Windows don't migrate to Linux. You have to manually copy them.
Disable v-sync and you'll have better performance than on Windows

Runs the same way as with Windows 11. Even with mods from Paradox Mods.
The game has it's own performance issues, it was launched in a very poor condition and still not fully fixed, you may enconter low simulation speed after certain population limit, but not related to Linux. I played the game also in W11 (same hardware) and it's the same experience.

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia gamemoderun %command% -preload +fps_max 144
Avoid DLSS on 3050 laptop, makes it unplayable. Once you disable it everything works smoothly
Works fine, mods aswell. Slight improvement over Windows once you get everything set up correctly

Image stuck on screen after alt-tab
Starting the game is fine, but after alt-tabbing or switching workspace a large screenshot of the game takes up part of both my monitors and is on top of everything. It only dissapears when closing the game

Soreprendido lo bien que funciona en Bazzitte 42 con NVIDIA , SIn retocar nada. Funciona incluso mejor que en Windows 11.
Sin problemas solo en Bazzite... En otras distros (PopOs!, Mint o Nobara) si que he tenido problemas...artefactos, chisporreteos de audio, congelacion, lentitutd.... Incluos en windows 11, con una ciudad de casi 200.000 cuando selecionaba una escuela u hostpital, se vuelve absolutamente lento e imposible de jugar hasta que lo desselcionas, y en Bazzite, 0 problemas. Realmente sorprendido con esta distro. Al fin voy a poder olvidar windows...
Since there is the possibility to use the wayland driver I have a UI, can control the camera with the middle mouse
PROTON_ENABLE_WAYLAND=1 gamemoderun mangohud %command% --in-process-gpu

PROTON_ENABLE_NVAPI=1 gamemoderun mangohud %command%
I was messing with this for ages and kept getting missing UI elements until I switched to proton 8.0-5. Then it loaded and ran without many issues


PROTON_ENABLE_NVAPI=1 gamemoderun %command%
Le jeu etait devenu injouable, le fait de mettre le pilote de la CG à jour a littéralement tout changé, le jeu refonctionne tout à fait normalement, plus auccun artefact, pas de lenteurs

Lenteurs de la souris
Le jeu est devenu tout simplment injouable, je pensais que ça venait de mon matériel, mais aucun autre jeu n'a les problemes de cities skyline, absence d'icones, artéfacts mineurs et majeurs selon ou l'on clique. Le jeu a pourtant fonctionné, ce n'est plus la cas
PROTON_ENABLE_NVAPI=1 gamemoderun %command%
Performance was terrible OOTB but it improved after I disabled Nvidia DLSS and went back to X11. Now it's still not ideal but at least it is somewhat playable now. There are also performance issues on Windows so it's not just Proton's fault.

Significant performance issue. It is not playable at all, even with low graphics settings, the framerate is nearly same as high (around 10)
frequent artifacts dispayed during gameplay
Mouse (crusor) is extremely small, even with lower resolution. Crusor size in 720p is as small as in 4k
Using a 5060TI 16G, only runs around 10fps, nomatter with 4k+high settings or 720p+ultralow settings
There is a significant performance issue. With a 5060ti 16G, it is not playable at all. Even with the graphics settings set to low, the framerate is nearly the same as when the settings are set to high (around 10). Meanwhile, I can get at least 20-30 fps on my Windows machine (an Intel NUC with a 9980HK and 3060 with 12GB RAM) running 1080p. It might be an Nvidia/Ubuntu driver issue.

apps doesn't respond in loading screens

Recent save games were missing, could be because of my steam cloud being full, have to check that
5 FPS in main menu until shaders are compiled, just wait a few minutes
After installing the game, the launcher install script launches. After that, nothing. Launcher never shows up, the game never starts.
mangohud %command%

PROTON_ENABLE_WAYLAND=1 WINE_FULLSCREEN_FSR=1 AMD_VULKAN_ICD=RADV VK_DRIVER_FILES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json gamemoderun %command% --in-process-gpu
The launcher was a black screen with the "PROTON_ENABLE_WAYLAND=1 %command%" launch argument and I had to add "--in-process-gpu" to it for the launcher to be visible
AMD_VULKAN_ICD=RADV VK_DRIVER_FILES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json %command% fixed it
AMD_VULKAN_ICD=RADV VK_DRIVER_FILES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json %command%
is required to play the game without constant freezes with Proton both on XWayland and Native Wayland

It runs awfully. Cannot get it to play properly, even tho everyone else seems to make it work
Runs at 10 fps even with mods disabled

mangohud gamemoderun %command%

works out of box but smoother with proton ge

MANGOHUD=1 WINE_FULLSCREEN_FSR=1 AMD_VULKAN_ICD=RADV VK_DRIVER_FILES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json mangohud %command%
Heavy artifacts before tinkering, unplayable

Works fine on Ubuntu 25.04 with latest Proton
On the initial re-install, when I updated the display settings the game was occupying both monitors even though only one was specified. Closing and relaunching the game fixed this.
If you enable Paradox Mods, the game takes so long to load that it's mistakenly reported as having crashed. You can click "Wait" a couple of times until the game finally finishes loading.
Pardaox Mods, still a beta feature, will cause the game to have longer loading times and can appear as though it crashed. The region packs also have graphic bugs. Honestly, I wouldn't mess with mods unless you absolutely have to use them.
Worked without any modification.

With the default proton version, I had crackling audio when opening any of the overlays. With the current beta version, it's gone.

Game crashes-to-desktop frequently when using bad code mods but not Linux related. Very stable without code mods.
Game runs fine as long as you stay away from badly written code mods. Some code mods seem okay. This isn't related to Linux as Win users experience the same BS.

Works fine on first launch, no command arguments needed.
It only promped me to install c++ visual redistribued when launching the game
Playable.

Degraded performance on large cities
Significantly worse performance than on windows (15-30fps vs 45-50fps), with severe stuttering. ~450k pop.
Significant performace issues on big citites when compared to windows, but no other issues.

The peformence of this game is lesser than windows 10 with higher population cities. But way better than a launch
Code mods dissabled
Return after Alt-tab casues game to black out and require a game restart
Game works good. considering the CPU I'm running

Just works out of box. Runs amazingly well
Must admit I haven't played Cities Skylines II since release and that was on Windows. It ran, okay at best. Now 18 odd months later just installed it again since switching to Linux and it runs amazingly well. No issues, super smooth and great frame rate even with a fairly large city. I do not know how much is down to Linux or just that the game has been patched a bunch since I last played it; but it feels native.

In the first dozen or so hours I played, the game occasionally crashed. Afterwards there were no more crashes.
The game runs smoothly. Also no problems with mods & stuff.
Works perfectly out of the box. Performance seems to be on par or even better than on Windows.

MANGOHUD=1 MANGOHUD_CONFIG=fps_limit=60,no_display %command%
You may experience the occasional crash, but it's not Linux related

Works perfectly, no tinkering required
Similar performance to Windows, still has "normal" game issues that can also happen on Windows like lag and the occasional game crash.