Outpost 57 (Mapping challenge entry)

Outpost 57 was created for the ChasmVille mapping challenge and won 3rd Place:
https://runthinkshootlive.com/posts/chasmville

The level begins with a quiet atmospheric build-up and backstory told to the player via a stationary radio broadcast. The "real level" is revealed as an inconspicuous bridge the player walks on collapses into a chasm. The player finds themselves in an enormous cave occupied by Combine forces, and proceeds to obtain weapons from the outpost armory. They fight their way through waves of Combine soldiers and manhack drones until they reach the reactor core in the middle of the cave.

Created in Source Engine using the Hammer Editor.