It sounds like you're looking for information on multiplayer in a cracked version of Anno 1800.
If you're looking for a free multiplayer city-builder / RTS: anno 1800 cracked multiplayer top
Important Note: It is important to mention that downloading or distributing "cracked" software is illegal and violates copyright laws. It also poses significant security risks, as such files often contain malware or viruses. It sounds like you're looking for information on
Free Weekends: Ubisoft occasionally hosts "Free Weekends" or free trial periods, allowing players to test the game and its multiplayer features before buying. Single-player only: Works (barely) on old patches
