Indie games have blown up in the last few years. People love the innovative game play, cheap prices, and underdog mentality when it comes to a game made by a tiny team of developers.
Bundle sites such as Humble Bundle, Indie Royale, and IndieGameStand have made boatloads of games available for the price of your lunch. Gamers rejoice!
Move over, AAA titles, the indies are taking over. These are all worth playing even if you've never heard of them...but I guarantee you know this first one (next slide).