Halo: Combat Evolved
Not only is this easily the best of the Xbox launch games, but it's easily one of the best shooters ever, on any platform.
Command & Conquer: Red Alert
There are new weapons, enemies, and levels, but the game engine and basic play are essentially the same.
Crysis is a Sci-Fi FPS game for the PC in which mankind must struggle to survive in the face of an alien invasion.
Gone Home is a first-person game entirely about exploration, mystery, and discovery.
Unreal Tournament (1999)
Unreal Tournament is the most complete first-person shooter available.
Starcraft II: Wings of Liberty
The first of three sequels in Blizzard's legendary sci-fi real-time strategy series focuses on the Terran faction.
A prequel to the original Halo, Halo: Reach follows a SPARTAN squad as they fight the Covenant on a besieged fortress world.
Half-Life is the closest thing to a revolutionary step the genre has ever taken.
Unreal Tournament 2004
No other multiplayer-focused action game has this much to offer.
FreeSpace 2 is one of the best space sims ever made and is a solid candidate for game of the year.
Despite a rather short campaign and a disappointing storyline, Halo 2 is an exceptional shooter that frequently delivers thrilling, memorable, and unique moments in its online, co-op, and single-player modes.
What really makes Battlezone so special is the way it blends the adrenaline rush of first-person action games with the strategy and resource management of Red Alert.
Cavedog has done a commendable job of taking the basic mechanics of real-time strategy and using them to create something new.
The Chronicles of Riddick: Escape From Butcher Bay
It's easily one of the most-impressive games on the Xbox and seems destined to be remembered as the most inspiring collaboration between Hollywood and the gaming industry yet.
Command & Conquer
Overall Command & Conquer is a great strategy game and easily the best available on the PlayStation.
If you don't like Descent at least a little bit, make no mistake, there is something wrong with you.
Half-Life 2 is a very impressive and engaging shooter, and a faithful follow-up to one of the greatest PC games of all time.
Dark Reign: The Future of War
One of the most impressive games released this year in any genre.
Dino Crisis 2
Dino Crisis 2 avoids the stereotypes of the genre and delivers one of the most refreshing takes on the third-person action shooter to date.
Terra Nova: Strike Force Centauri
A breakthrough in outdoor 3-D action sims, Terra Nova gives mech games and flight sims something to aspire to.
It doesn't stray far from the blueprint created by its predecessors, but it is, without a doubt, the best game to ever adhere to that formula.