Hello @orzabal_de thank you for getting in touch with us and sorry to see you have had some trouble running the game with DirectX12 and DirectX11.
To help resolve this, would you be able to try the following fixes that have worked for this error message in the past? >>
Fix 1 >
Locate this folder C:\Anno 1800\Support\DirectX\DXSETUP click on the .exe app and run the DXDiag setup, then install DirectX 11 or 12 when prompted. Test the game on each DirectX version 11 and 12.
Fix 2 >
Occasionally your Windows OS will not update its DirectX versions automatically and you will have to force an update yourself
Step 1: Press the Windows Key and type DXDIAG, then click on the app's logo to run the program. On the first System Information tab, it should tell you near the bottom which version of Direct X you are currently using
Step 2: Go to Windows Settings > Update & Security > Windows Update > Check for Updates
Step 3: If the update is available for your PC, you'll see a 'Feature update to Windows' message appear under Optional Updates.
Step 4: Begin downloading by clicking 'Download and install now
Step 5: Once installed, test the game on your preferred DirectX version.
Fix 3 >
If you are unable to update your Windows DirectX version manually, you can force the game to open in a specific DirectX version, either 11 or 12, by editing your config file >
Step 1: Go to C:\Users\username\Documents\Anno 1800\config open the config.ini file in a notepad type application and find the part that says DeviceType
Step 2: Change the part that says DX12 or DX11 to your preferred DX version, then save the file. Launch the game afterwards to test the game with that DX version after making the change in the config, instead of the in-game settings
Fix 4 >
This issue can also occur when your GPU requires an update. Please update your GPU to the latest driver update available. If you still have problems after this step with your 1080, please let us know exactly what driver number you upgraded to?