I can zoom in the game content to a useful level, but the UI stays super small of course. So in applications that are dpi aware and respect the setting, everything is sized as if on a 1920x1080 resolution (200% of the size it would be on the actual hardware 3840x2160), but ui elements and fonts rendering is high-res (rendered to hardware pixel density, not just stupidly blurring things). Windows 10 has settings for highDPI screens, scaling all interface to a factor (let's say 200% for simplicity, but adjustable in 1% steps). This is because the game does not detect the screen's pixel density (that is around 300ppi instead of the more commonplace 100-140ppi) windows 10's hiDPI scaling factor (set to 200% in my system). The game started (no change in behaviour from 2.5.x) like running on 3840x2160 resolution that my display is, unscaled interface, so everything is super small on a 15' screen (it would be okay on a 30' screen). if the german SOD translation is integrated, it's not working yet for me)

BG1 is german, SOD interface and some log feedback is german, game content is english. restart and force the game to nvidia Quadro M520 (Optimus) instead of Intel 620 GPU: repeat spell testing, works too (both with openGL renderer, didn't test the directx renderer!)

do some spells (with a level 1 shaman in candlekeep): no glitches (casting animation, area effect)

Hear music: yes (Start screen, Videos, In-game) Create a character and start a game (BG1 portion and SOD portion): successful Windows 10 pro, 2004, on a thinkpad P51s (equals a T570 with Intel 620 GPU+Quadro GPU/drivers instead of Geforce), some mobile i7,16gb ram, ssd, internal mainboard sound codec, 15' 4k screen.

Steam win 10 64 bit download