Set to hit the market on April 16, Anno 1800 will enter a short Open Beta stage that is scheduled to be held this weekend. However, those interested in taking this business management/city building hybrid title for a spin can already preload the game — a process that involves downloading over 18 GB of data.
https://www.notebookcheck.net/Anno-1800-Open-Beta-kicks-off-tomorrow.416213.0.html