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Hopefully this may help others that own RTX cards like myself and have constant crashing with Valheim usually about every 15-20 minutes while in game. I did some testing and finally got the crashing to completely stop yesterday, ran Valheim for about 6 hours with no more crashing.

What I did was go into Steam. Right click on the game's title and choose the PROPERTIES setting.

From there I unchecked Steam Overlay (this disables it)

Then I typed the following into LAUNCH OPTIONS at the bottom of the General Properties settings for this game:

-window-mode exclusive -screen-fullscreen

This will force the game into Exclusive mode, which I am suspecting is a fix for the crashes...least it was for me with my system.

I also went into Nvidia Control Panel and added Valheim to the program settings and turned on Vsync to "FAST" and also put the GPU into performance mode.

A combination of all these changes seems to have fixed my crashing. I suspect due to the game FULLSCREEN setting being Windowed Fullscreen, something happens to bug out the game but Exclusive mode seems to handle it.

I occasionally notice a micro freeze now and then but now it seems to recover almost immediately.

Give it a shot, may not fix everyone's crashing but for me it seemed to finally do the trick with these settings

---------UPDATE (2/16/21)---------

Sadly the fix isn't a consistent one. I got the game to work fine today a few times but all the sudden the crashing returned. Now its happening every 10 minutes so apparently the exclusive mode fix was just a luck thing for me yesterday. At a loss at this stage, I can't even get into the game without it crashing out now after just walking around for a few minutes

--------UPDATE (2/17/21)-----------

Last night me and my girl tested something out. She ran locally the server on her machine that has a 1060 card in it. She hasn't seen crashes so we decided to keep all these settings above with me in exclusive mode and I played on her server with no crashes at all for about 4 hours. So now I guess it seems hosting a game maybe part of the problem maybe. Gonna try out this new update later today that they dropped this morning and I will try to update you all on how it ran for me as host and as player at the same time.

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about 3 years ago - /u/dvoidis - Direct link

nice collection, would love to get more feedback on this. For example if exclusive mode is actually more stable. If so i would consider switching to using it as default.