The Doom series has their own jumpgates, called Anomalies, placed on the two moons of Mars, Phobos and Deimos. In the Doom 3 games a true version of a stargate appears. In Doom 3, it offers a direct link to hell, whence two Hell Knights emerge and attempt to kill the protagonist. In Doom 3: Resurrection of Evil, another stargate is opened when the player faces the first Hunter. All the Anomalies in both classic and new Doom are used to travel in space at an instant speed by using an alternate dimension as a shortcut, where the hellish and demonic race dwells.
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