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.
Planetbase - Planetbase is a strategy game where you guide a group of space settlers trying to establish an outpost in a remote planet.
Stronghold - Stronghold Crusader is a RTS game from the series from Stronghold.
Dwarf Fortress - Dwarf Fortress is a single-player fantasy game with two modes: fortress and adventure.
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.