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.
ANNO - ANNO is a city-building and economic simulation video game series, with real-time strategy elements.
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.
Tropico - Tropico is an Addictive, Strategy, Construction and Management, City Building, Sandbox and Single-player Simulation developed by PopTop Software.
Stronghold - Stronghold Crusader is a RTS game from the series from Stronghold.
The Settlers - The Settlers is a Real-time Strategy, City-Building, Management, Combat and Single-video game Series.