Sometimes derided as nothing more than tech demos, Crytek's Crysis games indeed demand capable rigs and generate some of the most impressive real-time rendering in the medium -- but they are much more than that simplistic characterization suggests. Few non-simulation shooters have been as uncompromising in their willingness to let the player explore the world at will and carve out a particular tactical approach (with one exception in Far Cry 2, below).

Even Crysis Warhead, which consciously takes a few steps back from last year's sometimes overwhelmingly wide-open Crysis, offers leagues more freedom than the rest of today's on-rails shooter experiences in the vein of the Half-Lifes and Call of Dutys (great games in their own right). What Warhead trims in terms of scale is balanced out by a greater attention to pacing and sensible gameplay variety, as well as level design that seems more tuned to the game's unique (and enjoyable) combat and suit mechanics.