UT2004, or Unreal Tournament 2004, is a first-person shooter video game developed by Epic Games and published by Atari, Inc. It was first released on March 16, 2004 in North America and March 18, 2004 in Europe. It is one of the installments in the Unreal game series and the direct sequel to UT 2003. Like previous installments, the game can be played either online or offline.
The game offers 10 modes of gameplay, which includes the new game mode called Onslaught. This game mode enables users to fight against 10 or 32 opponents. The game also features different types of vehicles including new additions such as the Raptor air fighter and Goliath tank. Most of the vehicles are available in the Onslaught game mode while others are featured in the Assault game mode. Vehicles available in this game consist of vehicular and aircraft types. Two spacecrafts are also available but it is only present in the Assault map. The game also added new weapons including a gun capable of firing skittering spider mines, a guided missile, and a laser used to paint airstrike opponents.
Mods are also featured in UT2004. These modifications enable the players to create and customize maps, game modes, and models. Other game elements can also be added to the game.