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Disable DLSS, do not run any screen recording software, and the game is very playable. Freezes generally happen only once per session.
--launcher-skip --intro-skip --skipStartScreen -dx12 -USEALLAVAILABLECORES
Settings have to be tweaked, especially on 4000+ series NVIDIA graphics cards, particularly DLSS has to be disabled.
The game does not crash, but the vulkan shaders crash at specific locations in the map. This causes freezing, but if settings are tweaked correctly you can continue to play the game after this.
__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia LD_PRELOAD="" %command% --launcher-skip --intro-skip --skipStartScreen -dx12 -USEALLAVAILABLECORES
AI frame generation must be turned off on RTX 4000+ series cards or the issue described below will cause severe artifacts to the point the game is unplayable.
There are parts of the map that will cause Vulkan shaders to crash (Tiger Bay and Kiu Vongsa so far for me), however, if you have your settings set up correctly, this will not be much of an issue as the game will simply freeze for a few seconds and then you can keep playing, this only happens once per game session.
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2 bash -c 'exec "${@/dowser/stellaris}"' -- %command%
When loading mods, there is a documented issue as another described here: https://forum.paradoxplaza.com/forum/threads/stellaris-stellaris-on-linux-segmentation-faults-and-performance-3-14-68ca-without-mods.1726956/ Some mods will crash your game upon completion of loading, but this can be worked around by installing JEMalloc and using LD_PRELOAD to load this library with the game.
The game runs fine without mods without any tweaking. However, with mods, many mods appear to cause the game to crash. The reaso
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2 bash -c 'exec "${@/dowser/stellaris}"' -- %command%
Certain mods without using LD_PRELOAD to load the game with JEMalloc will cause the game to crash while loading. The reasons for this are described here much better than I can explaint them: https://forum.paradoxplaza.com/forum/threads/stellaris-stellaris-on-linux-segmentation-faults-and-performance-3-14-68ca-without-mods.1726956/
To fix this issue, you must install JEMalloc, and point LD_PRELOAD to it, as I have done in my launch options.
