Runs on integrated graphics (Intel UHD Graphics 620) in full detail without a problem, only had to run via the DX9 executable (DX10 had no sound) and add the "203.132.26.155 127.0.0.1 # AC1" line (without quotes) to c:\windows\system32\drivers\etc\hosts file to stop the periodical freezes (even non-DRM games seem to ping back home to momma; just unplugging the ethernet cable together with disabling wifi also worked). Plus you can move the *.bik files in "Videos" folders elsewhere for faster startup (a subfolder in Videos is enough) once you watch them.
Lotta bang for the reduced price but not without flaws. Runs like a breeze even on an integrated graphics (Intel UHD Graphics 620). The gameworld is huge and nice with long draw distance but kinda empty. Most side missions are dumb and boring and upgrading equipment takes a lot of grinding but hey, the point is the flow, not the story. Reminds me of oldschool 2D shooters where you destroy everything just for the score and explosions.
Same problems as with the Steam version - no sound and cutscenes play at 1 fps or so. Otherwise, the game seems to run smoothly at 1080p with nextgen content enabled (notebook with Realtek audio and Intel UHD 620 integrated graphics). Used manual installation, though it would be weird if installing via GOG Galaxy would fix the problem. The game itself is 4-5 stars, a nice one if you don't need all the latest bells and whistles and movie-like graphics.
