Map Labs: Abstraction - Climbing the Eidolon
Part of "Map Labs #3: Abstraction." It's a bonus map in the entry where players climb a large tower to reach their way to the top.
You can get Map Labs: Abstraction as a map pack here: https://www.runthinkshootlive.com/pos...
It's highly recommended to have Half-Life 2 or Half-Life 2: Episode Two installed when trying out this map pack.