Unreal Tournament III will be primarily an online multiplayer first person shooter game offering a variety of game modes, including large-scale Warfare (a revamped version of UT 2004's very successful Onslaught game), Capture-the-Flag, and Deathmatch. Thousands of public servers were (and still are) available for UT99 and UT 2004 and people could easily access them for free (using their Internet connections) and play and compete against other people of widely varying skill levels over the Internet. UT3 is also rumored to include an extensive and worthwhile offline single-player game with a compelling story.
People who are new to the series may be unaware of some of its most crucial and important aspects. Enthusiasts can design (on a computer) their own custom user-made maps and game modes and make them available via free Internet downloads for online multiplayer or single player play, adding tremendous variety and dramatically increasing the game's longevity and replay value. Thousands of custom maps and game-type modifications (mods), many of which are excellent and first-rate, are available for UT99 and UT 2004. Consequently, if Unreal Tournament III is true to form, then enthusiasts will probably create hundreds if not thousands of custom maps and several worthwhile additional game types. Additionally, UT99 and UT 2004 enjoyed having strong and active online communities, including organized competitive leagues with hundreds of organized teams often composed of players who started out as newbies and who met on public servers.