Impressive isn't quite the word. The OGCOpen is an online golfing simulation that delivers an astonishing level of 3D graphics, character customization, and course designs, and ball physics. There's no software to install, everything happens right inside your browser, and because it offers a multiplayer mode, there are online tournaments to join. Although it's currently in beta, the game looks very polished, so much that it's hard to believe this is running in Adobe Flash and that it's free. Tee up, give it a try, you'll see what I mean.