In order for you to play Anno 1800 on Windows with minimal graphics settings, your computer must meet the following requirements
Respective Settings:
1080p Low Preset - 60 FPS
Processor (CPU):
Intel i5-4460 - 3.2 Ghz, AMD Ryzen3 1200 - 3.1 Ghz
Graphics Сard:
Nvidia GTX 670 - 2GB, AMD Radeon R9 270X - 2GB
Memory (RAM):
8GB
In order to play Anno 1800 on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Respective Settings:
1080p High Preset - 60 FPS
Processor (CPU):
Intel i5-4690K - 3.5 Ghz, AMD Ryzen5 1500X - 3.5 Ghz
Graphics Сard:
Nvidia GTX 970 - 4GB, AMD Radeon R9 290X - 4GB
Memory (RAM):
8GB