An excellent free online card game set in the Warcraft universe
Hearthstone is an online collectible card game (CCG) in which you will face friends and strangers with cards and characters inspired by Warcraft. Remember Magic: The Gathering and Duel of Champions? Well, Hearthstone takes these concepts and makes them (even) more accessible with streamlined rules and controls. While it is primarily a multiplayer game, it is also fun to play alone thanks to its full campaign and excellent tutorial.