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.
Stronghold - Stronghold Crusader is a RTS game from the series from Stronghold.
RimWorld - RimWorld - A sci-fi colony sim driven by an intelligent AI storyteller.
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.
Dwarf Fortress - Dwarf Fortress is a single-player fantasy game with two modes: fortress and adventure.