I can't recommend Psychonauts enough. It's by Double Fine, who recently had the $1M Kickstarter campaign many of you will remember. Tim Schafer, founder of, and designer at, Double Fine, is celebrated at his craft, and Psychonauts is an excellent example of why. And it's written by Schafer and Erik Wolpaw, who wrote Portal.
In his games, and especially Psychonauts, Schafer is known for creating a beautiful world and characters for the player. In Psychonauts you play Raz, a young child of circus performers who (instead of running away from his boring life to join the circus) runs away from the circus to attend summer camp! Of course, it can't be normal; it's a summer camp for those with mental abilities, training to join a super-powered CIA style organization. You hone your psychic abilities as you go through levels that take place in the minds of characters. The characters, though fun, start off warm and familiar: The militant trainer, the cool, calm, and perfectly restrained agent, and the hippie-dippy counselor who just wants to have a good time, maaan. There's even a kooky old man who may be more than he thinks... But then it gets amazing.
Schafer is well known for his writing, and for me it's his ability to perfectly marry together game concepts and game content that make him great. In Mario you collect coins and in Sonic you collect rings, both existing in story only to their own end. In Psychonauts you traverse the minds of other characters, collecting mental fragments, the doodlings of an inner child. You can also find memories locked away in vaults, sometimes hidden behind barriers (mental blocks), or behind cobwebs. (Talk about not wanting to deal with things!) It's through collecting these memories that we actually get a better picture of the people whose minds we're traversing.
The game is not perfect. There are issues with a level or two. Well, one anyway. Overall, it's reach probably exceeds it's grasp, but that's okay. It manages to reach pretty damn far. And how it gets there is far better than most games.