kiasta: Ok, I just sat through installing this game, painstakingly, through the offline installer just to get the very first error message saying that there is a data mismatch and that files are corrupted through the Larian launcher.
What is happening? How am I just not able to install this game and play it all of a sudden?
Is there an Admin on here that can assist me with this?
Edit: No I do not have nor use mods. I've installed this game twice already through GOG Galaxy and both times the installation has failed claiming corrupted files. Then installed it a third time through the offline installer and it's still saying that there's a data mismatch and I have corrupted files. I have no issues with any other game.
Ignore that error and carry on - seriously :(
Sorry you had to waste so much time.
After a clean install, GOG puts two (2) - if I'm remembering right - files of their own into the install folder and this freaks out the Larian Launcher Self Check.
You could go and delete the files so that you don't get that error message anymore.
Or you could just click close.
Or you could just start the game without using the launcher; i.e. run the game by double-clicking on bg3.exe (being the Vulkan executable) or bg3_dx11.exe (being the DirectX executable)