No recent wiki edits to this page.

The Citadel is the base of operations for the Combine on Earth. The Citadel's primary inter-dimensional teleporter is powered by a dark energy reactor, which explodes at the end of Half-Life 2, devastating the entire Citadel and completely destroying a large portion of the top. Later, Gordon Freeman and Alyx Vance venture into the heart of the Citadel in an attempt to stabilize the construct's primary Dark Energy Core. While temporarily successful, the Core eventually destabilizes and explodes. The resulting blast not only completely destroys the Citadel and City 17, but the energy is harnessed by the Combine, creating a superportal.

This edit will also create new pages on Giant Bomb for:

Beware, you are proposing to add brand new pages to the wiki along with your edits. Make sure this is what you intended. This will likely increase the time it takes for your changes to go live.

Comment and Save

Until you earn 1000 points all your submissions need to be vetted by other Giant Bomb users. This process takes no more than a few hours and we'll send you an email once approved.