10. "Braid"

"Braid" may look like a basic 2D platformer, but it's a pivotal game in the ever-evolving history of the video game medium. When it launched in 2008, it was one of the first major indie games to blow up on both commercial and critical levels.

And that's for good reason: "Braid" makes small twists on video game tropes known by gamers and non-gamers alike, in such a way as to subvert what you thought the game was "supposed" to be. To say more would be to potentially ruin a beautiful experience.