To celebrate the 20th anniversary of Wolfenstein 3D, the game is returning, in brower form.You can play the classic PC game directly in browser at Bethesda's site, or on the Wolfenstein Facebook page.
Bethesda is also offering Wolfenstein 3D Classic Platinum, on the iPhone, iPad, and iPod Touch, for free for a limited time. Download Wolfenstein 3D Classic Platinum from iTunes.
Wolfenstein 3D holds up surprisingly well. It's difficult, colorful, huge and surprising, plus, killing Hitler just never gets old, especially when he's apparently a wizard who can cast "fireball" at will.