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The Xen Tree is an alien organism found on the border world Xen; although it attacks creatures that get too close, it is not known to consume the bodies or do anything to them.


  • They somewhat resemble an upturned root and are around thirteen to sixteen feet tall (3.96 to 4.87 meters tall). A brown-ish tree-like creature with no leaves or branches, they have a fully mobile "trunk", and a large, hook-like appendage at the top, used for attacking nearby prey.
  • These trees are scattered around Xen and can prove a danger to an unwary explorer and other Xen wildlife by violently stabbing at any nearby source of movement, much like a tentacle.
  • Xen Trees attack nearby enemies to kill them.
  • They are often found near Xen's Light Stalk plants, it is a possibility that they are related.
  • Although very hard to accomplish, it is possible for players to trick enemies into walking near Xen Trees. Sometimes, these hostile NPCs can get stuck and the player does not have to exert any effort in eliminating stuck assailants, especially the feared Gargantua.


  • A Gonarch's movement causes nearby Xen Trees to attack even if no prey is close. This suggests that the trees detect their prey using vibrations.
  • Xen Trees are not affected by the console command notarget and will keep attacking even if it is active.
  • Xen Trees were heavily inspired by Butchertrees from Wayne Barlowe's Expedition, being nearly identical in appearance and behavior.
  • It is possible that Xen trees are related to tentacles, as they both attack moving objects, although this is not known for a fact.
  • Xen trees located within the Gonarch's Lair will not attack Gonarch. However, they do, and will attack baby headcrabs should they get up close.


List of appearances

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