It takes a lot of money to build a city. But, this week, it won't cost you a dime.
Now through August 25, Ubisoft's Anno 1800 is free on Uplay. After that, you'll need to shell out some coin. But, maybe spending a week with the Old World you built will help convince you it's worth keeping around.
Further, Ubisoft laid out some DLC plans for Anno 1800. The second expansion, Botanical Gardens, launches on September 10; the frosty, icy Passage add-on releases later this winter.