Patch 11009 Notes
The Age of Empires 4 game update is available for download now. The download size is 1.5 GB. Make sure to download it as soon as possible, so that you can enjoy the improved game.
After a long time, players will finally be able to build Fortresses in Age of Empires 4. Fortresses are defensive buildings and they can only be built on top of a hill. They have a lot of the same functions as the Keep, but they are more powerful.