Not a World of Warcraft flash game, admittedly, but it's still a great game made by a very talented flasher. This will let you play the original Warcraft: Orcs and Humans in a simplified flash version. The animations are pretty good and I had a nostalgic feel in my gut when playing this, as I went back 15 years ago when I first set my hands on the original Warcraft. Kudos to the dev, here's his Warcraft flash game: