Unreal was released in 1998 after more than 4 years of development, a breakthrough in 3D games. The groundbreaking new graphics engine, as well as the extensibility of the game made it very popular, and paved the way for other Unreal titles.
In the single player campaign you play a prisoner on-board the Vortex Rikers prison ship after it crash lands on a mysterious planet. As the player progresses through the various outdoor vistas, dark caves, and technical facilities, it becomes evident that they are the messiah prophesied by the pacifistic native Nali race, who will deliver them from the Skaarj menace. Multiplayer coop and deathmatch modes are available.