Hi, I hate to the that guy whose first post is a help request but thats exactly what I am doing. This is my first Gog game and it isn't working. If I download the normal version of the game, it says the windows registry is corrupt, and thats it. If i download the offline launcher, by messing about witht he compatiability modes I have managed to get the game started, but once I click on the zoom/province button, I get a view of the city for a second or two and then the game just drops back to the desktop. Any help is appreciated. I have opened a ticket but the tech support have been unable to help, despite being polite and offering me lots of suggestions, nothing has worked. Am on windows 11, RTX 2060. Thanks.

I had the same problem, couldn't get the game started no matter what. But finally got it working today.

I read in another post that installing the game to "C:\I-Magic\Fallen Haven" using the offline installer worked, tried it today and the game started, could start a new campaign. The quick-start, intro movie and encyclopedia worked as well. So it looks like it was the solution for me. Win11 and RTX 3060.

This worked...cant believe it but it did! Had the tech support guy trying everything for weeks. I gave up in the end. Thank you!

were or how do i install in offline mode as im haveing this problem and newish to pc

Go to GOG website, find the game and download the offline installer, its little bit hiding, dont download the goginstaller, there is another installer named offline installer. create a folder named " C:\I-Magic\ " and install the game into this folder.
go to the exe folder and start the exe. have fun

super! thanks