Singularity Collapse achievement in The Orange Box

Singularity Collapse

Destroy the Citadel's reactor core.

Singularity Collapse0
1 guideOffline Game ModeSingle PlayerMain Storyline

How to unlock the Singularity Collapse achievement

  • T IR E L O NT IR E L O N339,617
    25 Oct 2008 29 Oct 2008
    34 1 0
    This achievement is story related. It is awarded for completing Half-Life 2 by destroying the Citadel's reactor core before Dr. Breen completes his teleportation. Make your way up to the top of the Citadel by passing a series of energy ball fields, combine soldiers and moving platforms. Once you reach the top, you are confronted by 2 Combine gunships. You will notice that 2 energy ball fields appear in front of you. Use your supercharged gravity gun to destroy the reactor core by shooting multiple energy balls at it from the side.
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