It works!
I tried both full screen and windowed and both worked fine, except for a fairly long wait at 100%.
Do I have to continue using a reference installation?

Got the same error message as last time, but this time, every time I pressed exit, it opened another error message window with the same error. It did that 4 times before the game window finally closed.
Sorry for the wait on this reply. I've been out of town a lot lately.

Tried the reference installation. No luck.

It is my only video card, and no, I don't play using steam. I downloaded directly from star-made.org

Already disabled.
A friend on a server i tried to join told me that i did in fact join the game, while on my end it just froze at 100%.
Would this have anything to do with those datashader files?

No luck, same error message as original:

It is off

I just installed the exact same driver version as SmilingDemon - no change