For the festivities, Unreal Tournament will be reduced to a mere $1.99. UT3 will be free to play for a long weekend starting tomorrow, coupled with a 66% discount. The bumper Unreal Deal Pack will also be marked down by 66% for the weekend.
The Unreal Tournament demo being celebrated is available over on FileShack in a teensy 53MB download with now-laughable system requirements.
The full Unreal Tournament arrived on November 30, followed by UT 2003 in October 2002, UT 2004 in March 2004, then finally 3 in 2007. The shooter series began life as singleplayer with 1998's Unreal, succeeded in 2003 by Unreal II: The Awakening.