If you like combat flight simulators, this is one of the best available.
DCS: A-10C Warthog is a PC simulation of the U.S. premier Close Air Support attack aircraft. This is the second aircraft in the DCS series, following DCS: Black Shark, and raises the bar even higher in the DCS series. Warthog brings the most realistic PC simulation of a modern fixed wing combat aircraft in regards to flight dynamics, avionics, sensors, and weapon systems. You also have the option to play Warthog in "Game" mode for a casual game experience. Fly missions in the Caucuses region of the Black Sea against and with a wide array of air, land and sea forces with new and improved intelligence. Create your own missions and campaigns with the included Mission and Campaign Editors, and fly with and against friends online using the included online game browser.
Key features:
Fly the A-10C “Warthog” in either realistic or game modes.
Fly missions in either Georgia and Russia.
Interactive training missions shallow the learning curve dramatically.
Rich campaigns and single missions included.
Multiplayer cooperative and head-to-head.
Feature-rich Mission and Campaign editors allow user created content.
The most realistic flight dynamics ever done for a PC simulation.
Huge array of land, air and sea units to flight along and against.
Ability to command ground forces during missions.
Fully interactive Forward Air Controller (FAC) that helps you find targets.
Steep learning curve (not so much flying but targeting, radar and weapons) and you need a joystick (a HOTAS is ideal). But it's really sweet once you master it or get a few mates together to do Co-Op.
Really piss easy to make your own missions, and they can be spectacularly complex. Nothing like having two carrier battle groups with 40 plus aircraft blasting each other out of the sky while you're strafing ships with TV missiles.
Also Flaming Cliffs 3 is on sale for $30 (cheapest price so far). If you want the mostly complete experience (minus the Ka-50).