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Underhell Walkthrough Chapter Select (Turn on annotations!)
Underhell 1.5 walkthrough (2011 version)
Underhell Prologue Mod-through Part - 1
Half-Life 2 Mod Underhell - The Good, The Bad, And The Terrible
Back in the mood [Underhell - Part 1]
Let's Play Underhell Part 01
Garry's Mod | AWESOME TACTICAL WEAPONS (Underhell) | Mod Showcase
Underhell (Prologue + Chapter 1) - (No Commentary)
mmw1's LP of Underhell (Chapter 1 Edition) part 1
Underhell Mod
Underhell by We Create Stuff team - Video Review
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Last Updated: August 18, 2026
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![Details Best Source mod ever! [Underhell - Part 9 - ENDING] Guide](https://i.ytimg.com/vi/wu2Xb6xA4G0/mqdefault.jpg)
![Back in the mood [Underhell - Part 1]](https://i.ytimg.com/vi/himBYq7oTHU/mqdefault.jpg)
