Unreal Tournament is a First Person Shooter representing a fast paced
extreme sport of the future, where you compete against other warriors
to determine the best. It has the same feel of the original, but new
graphics, effects, and game modes adds new flavor to the game. Choose
from Deathmatch, Team Deathmatch, Capture the Flag, Domination 2.0, or
Bombing Run. Adrenaline adds a new factor in the gameplay as you can
execute special abilities like regeneration, speed, invisibility when
you reach full Adrenaline by either collecting the pills or killing
enemies. UT 2K3 can be played single player against bots, or
multiplayer through LAN or the Internet. (MobyGames)

1st download: Image of game disc one
2nd download: Image of game disc two
3rd download: If the installer crashes after you enter your CD Key,
use this fixed replacement installer instead.
4th download: A patch that provides performance improvements,
eliminates the requirement for a CD to be mounted, improves support
for Panther, and more
5th download: A patch fixing serious issues with the previous 2225.1
patch. You do not need to install the 2225.1 patch first, so the 4th
download is actually unnecessary.
6th download: A patch that fixes some minor bugs. It will apply over
either the original retail version or the previous 2225.1 & 2 patches.
I am not sure if it also applies the fixes implemented in the earlier
patches.
7th download: A demo.
8th download: A demo server to allow demo dedicated servers host for
retail Unreal Tournament 2003 clients on any operating system. The Mac
demo is required.

The CD key is in the manual.

See also: [Unreal Tournament][1], [Unreal Tournament 2004][2]

Compatibility
Architecture: PPC

PPC G4 - 700 MHz
OS X 10.2.5
256 MB RAM
3 GB hard drive space
32 MB ATI Radeon or NVidia GeForce 2MX or faster

Will not install in Snow Leopard.

The replacement installer (3rd download) requires mounted physical
CDs. Mounted disc images are not sufficient.

  [1]: http://macintoshgarden.org/games/unreal-tournament
  [2]: http://macintoshgarden.org/games/unreal-tournament-2004