Stronghold - Stronghold Crusader is a RTS game from the series from Stronghold.
ANNO - ANNO is a city-building and economic simulation video game series, with real-time strategy elements.
Age of Empires - Age of Empires is the critically acclaimed, award winning Real Time Strategy (RTS) game with a legacy spanning over 20 years and nearly a dozen titles in the franchise.
STAR WARS Galactic Battlegrounds Saga - STAR WARS Galactic Battlegrounds Saga is an Action, Real-time Strategy, Combat, and Multiplayer video game created by Ensemble Studios.
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.
Rise of Nations - Rise of Nations was launched back in 2003 but is still considered to be one of the most popular and effective real-time strategy (RTS) games of all time.