For other uses, see Xen (disambiguation).
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Xen Dance is a multiplayer map in Half-Life: Opposing Force. The standard deathmatch version was included with the game on release while the capture the flag version was added in the Opposing Force CTF update.
- “The battle for Black Mesa has taken a turn for the worse as the unstable dimentional rifts become more and more dramatic. Now entire groups locked in battle are finding themselves suddenly and unexpectedly teleported across space to the border world known as "Xen". But even in the strange new surroundings, the battle rages on.”
- — Opposing Force CTF Description
 Behind the scenes
Xen Dance is part of the All-Star Deathmatch maps shipped with Opposing Force, a collection of multiplayer levels created by well-known designers in the industry contracted by Gearbox Software. It was among author David Kelvin's first attempts at Half-Life editing along with Waste Disposal. Xen Dance was originally designed with the intention that the Barnacle Grapple could attach to any solid surface. This was changed in the final release so that the weapon could only cling to specific Xen growths.