Developed by Valve Corporation
Available on Microsoft Windows, Xbox, Xbox 360, PlayStation 3, OS X,
Like its predecessor, Half-Life 2 is a single-player first-person shooter
broken into several chapters, permanently casting the player as the
protagonist Gordon Freeman. The sequel has nearly the same mechanics as
Half-Life, including health-and-weapon systems and periodic physics
puzzles, except with the newer Source Engine and improved graphics.