Kind of a mix of Civilization 2 and Warcraft II, Age of Empires is a real-time strategy classic that has in turn spawned countless imitators. If you've ever played any title from the Age series, you'll feel right at home gathering the troops, gathering natural resources, and building structures. The game's graphics and sound are a bit rough by today's standards, but the challenging gameplay and classic control definitely stand the test of time. Although only one campaign comes with the demo, it's split up into several scenarios that can take hours to get through. If you're any kind of real-time strategy fan, this should have a mandatory spot in your download library.