Edit (Dec 22) : Today's update fixed the issue and clouds display normally on Kepler/Maxwell cards again. However this still prevented me and many people from playing this for almost 3 months so the review is staying negative, especially with their initial response to the problem.

Three months after release, the developers decided to push an update that changes how weather rendering is done. That update makes multiple video cards that are included in the game's requirements (Nvidia series 700 and some 900 cards) unable to display clouds or weather effects at all, making the game nearly unplayable.
All responses from them so far are along the lines of "we don't know if this will be fixed" and they've also refused refunds.
So until this gets fixed, or if it ever does, I highly recommend staying away from this horrible developer because one day you might just find your PC unable to run the game anymore for no reason whatsoever.

Edit: I thought this was clear but I should mention that before that update my game ran perfectly fine. All weather displayed normally and I had playable fps on low settings. Yes my GPU is very old now, but the point of this is that the game was in fact running fine until they decided to change the minimum requirements.

Edit (Dec 22) : Today's update fixed the issue and clouds display normally on Kepler/Maxwell cards again. However this still prevented me and many people from playing this for almost 3 months so the review is staying negative, especially with their initial response to the problem. Three months after release, the developers decided to push an update that changes how weather rendering is done. That update makes multiple video cards that are included in the game's requirements (Nvidia series 700 and some 900 cards) unable to display clouds or weather effects at all, making the game nearly unplayable. All responses from them so far are along the lines of "we don't know if this will be fixed" and they've also refused refunds. So until this gets fixed, or if it ever does, I highly recommend staying away from this horrible developer because one day you might just find your PC unable to run the game anymore for no reason whatsoever. Edit: I thought this was clear but I should mention that before that update my game ran perfectly fine. All weather displayed normally and I had playable fps on low settings. Yes my GPU is very old now, but the point of this is that the game was in fact running fine until they decided to change the minimum requirements.