@siebenachtel30 Hey there, thanks for getting in touch about this, and welcome to the forums! Sorry to hear you've had issues launching Anno 1800 - I'll be happy to help you get that sorted.
Please start with our troubleshooting guide. In particular, make sure you've updated your GPU drivers and operating system (which will help if indeed it is something to do with your graphics card), you've verified the game files (this makes sure the game has all the files it needs to start up), and you don't have any unnecessary background programs inter...