However, they do, and will attack baby headcrabs should they get up close.

Xen trees located within the Gonarch's Lair will not attack Gonarch.

It is possible that Xen trees are related to tentacles, as they both attack moving objects, although this is not known for a fact.

In 2020, after years of speculation, Valve released its flagship virtual reality game, Half-Life: Alyx.

Xen Trees were heavily inspired by Butchertrees from Wayne Barlowe's Expedition, being nearly identical in appearance and behavior. Over the following decade, numerous Half-Life games were canceled, including Episode Three, a version of Half-Life 3, and games developed by Junction Point Studios and Arkane Studios.

Xen Trees are not affected by the console command notarget and will keep attacking even if it is active.

This suggests that the trees detect their prey using vibrations.

A Gonarch's movement causes nearby Xen Trees to attack even if no prey is close.

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.

Although very hard to accomplish, it is possible for players to trick enemies into walking near Xen Trees.

They are often found near Xen's Light Stalk plants, it is a possibility that they are related.

Xen Trees attack nearby enemies to kill them.

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.

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.

They somewhat resemble an upturned root and are around thirteen to sixteen feet tall (3.96 to 4.87 meters tall).

Half life 2 episode tree