The main games and the major TCs seem to scale very well at 4K but mods like Wings of Dawn are unplayable at 4K, I noticed, unless you have your nose up to the display. Parts of Blue Planet Complete also has texts too small to read in 2160p but most of the main text scales okay. I wish there was a one-all solution for this. I'll probably have to uninstall WOD unless there's a fix other than dropping down to 1080p (I've gotten too used to 2160p quite frankly and Freespace looks great at that resolution though I do notice severe banding that the other mods don't have in Blue Planet as if it were only 16-bit ).