The Undertow
Alyx Addon
HL:A Campaign-like
Other Environment
Action
Puzzle
Industrial
Underground
Comedy
Maps
Long (an hour)
Urban
Combine Structures
Combine Soldiers
Headcrabs
Beginner
Stealth
Exotic
Crime
Abstract
Other Theme
Subscribers
34,744
Favorites
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Views
87,382
Growth since tracked
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Growth 30d
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