As a stealth action-adventure with some mild FPS elements, it paints a grim picture of what might become of humanity with the onset of personal mechanical augmentation. You play Adam Jenson, an ex-cop turned corporate security specialist, who can use guns, stealth, wits, or even charisma to complete his objectives. I wholeheartedly recommend this to anyone who enjoys an FPS where you can complete an entire level wthout being seen, or the entire game without firing a shot.

A fairly refreshing take on the platformer genre. Responsive controls, clean gameplay, and interesting level design make for quite a decent adventure/platformer suitable for any age. The only thing I could see missing would be steam achievements.

Team Fortress 2 is probably the best in class-based shooters. With constant updates and tweaks, the game keeps evolving, but the experience stays the same. Not having a copy is probably a sin, considering how cheap and well-maintained it is.