The homepage says: "Unreal Tournament 2003 is a lightning-fast, no-holds-barred sport of the future, where warriors face off like the Gladiators of ancient Rome to determine the ultimate combatant. Super human reflexes, awesome weapons and the skill to use them effectively are what separate the good from the bad, the living from the dead, the victor from vanquished.

Unreal Tournament 2003 can be played alone, against computer-controlled 'bots' or against human opponents via LAN or the Internet. The single player experience revolves around progress through a tournament ladder where you play alone or as leader of a team of warriors you select to take on the enemy in the various modes of combat. As your team wins, you'll work your way up through the leagues until the challenge to ultimate combat is met and the true Champion determined.

The multiplayer section of the game is where the skills you have are tested to the limit. Go up against individuals or teams on your own or as member of an elite squad on LAN or the Internet in Unreal Tournament 2003's various modes of multiplayer game play."