From GameWatcher: “Ubisoft has announced that city builder Anno 1800 is going free-to-play for an entire week in honor of Gamescom 2019, event that kicked off yesterday. Players will be able to download the title at not cost until Monday, August 26.
The free-to-play version of Anno 1800 will include the first three population tiers in sandbox mode alongside the game’s multiplayer mode. More than that, it will also offer a look at its day & night cycle that will be introduced in a free update on September 10. Here’s how to download the free-to-play version of Anno 1800.”
Source: N4G PC Anno 1800 Free to Play This Week – How to Download