Sit back and watch two decades of video game graphics flash before your eyes. YouTube user drloser333 has uploaded a video from French site NoFrag that unfurls the graphics of more than a dozen first-person shooters, from 1992's Wolfenstein 3 to 2011's Battlefield 3.
Did the FPS get better-looking? They have at least become way more realistic, But maybe you're more of a fan of older, more abstract styles?
Graphic evolution of First Person Shooters: 1992-2012 [YouTube, uploaded by drloser333; more details (in French) at NoFrag.com]