The Settlers Online - The Settlers is a free web browser based strategy game along with a gameplay that drops anywhere between Age of Empires and the online strategy style.
Banished - As always, Email support (at) shiningrocksoftware (dot) com if you have any issues. This will likely be the last update of Banished, except for any major bug fixes. The OSX and Linux versions development has stopped, and won't be released.
ANNO - ANNO is a city-building and economic simulation video game series, with real-time strategy elements.
Tropico - Tropico is an Addictive, Strategy, Construction and Management, City Building, Sandbox and Single-player Simulation developed by PopTop Software.
Anno Online - Anno Online is one of the Anno series of video games.
Parkan: Iron Strategy - Parkan: Iron Strategy is an Action, Real-time Strategy, Sci-Fi, First-person Shooter and Single-player video game developed by Nikita Online.