This article relates to the game "Half-Life". Click here for more information.


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The Nihilanth launching energy balls at player.
Spoiler Warning
Some information on this page may contain plot spoilers. Continue reading at your own risk.

Nihilanth is the final Xen boss in Half-Life Half-Life and also the eighteenth chapter of the game.

Quotes from Half-Life 2 Half-Life 2 suggest that the Nihilanth was a Combine product. Judging by its appearance, it is a cybernetically and genetically enhanced Alien Controller that had been controlling the Vortigaunts for eons, much like Breen controlled the human race before Gordon Freeman managed to destroy the citadel of City 17.


  • "Thieves... you all are thieves... you all are..."
  • "Alone... not you alone... not you alone..."
  • "The last... I am the last..."
  • "Deceive you... will deceive you..."


The following .bsps comprise this chapter.

  • c4a3