Quake - Quake is a series of first-person shooter video games released by id Software.
Stronghold - Stronghold Crusader is a RTS game from the series from Stronghold.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Tropico - Tropico is an Addictive, Strategy, Construction and Management, City Building, Sandbox and Single-player Simulation developed by PopTop Software.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
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.