Dota 2 is not only one of the more daunting PC games to learn and master, but it's also one of the most rewarding and satisfying to play once you know what you're doing. Two teams of five assault each other as they try to destroy the opposing team's Ancient. It sounds simple, but the strategic depth is vast, and there's a lot to learn if you want to keep up. It requires learning the map, getting familiar with the vast array of characters, and mastering their mechanics to be successful. Of course, if this wasn't an exciting process, it wouldn't be as popular as it is--and if you haven't seen a match play out at The International, then you're missing out.