This game has been Greenlit by the Community!

The community has shown their interest in this game. Valve has reached out to this developer to start moving things toward release on Steam.

Platforms: PC
Languages: English, Russian
Players: Single-player
Sep 3, 2012 @ 8:20pm
Feb 9, 2015 @ 8:50am
Recent Announcements View All (6)
Vote for Underhell for the 2013 Mod Of The Year awards
Underhell is a Source Engine Game that will be distributed in Episodic releases.
Prologue has been released on March 3rd, 2011.
Chapter 1 has been released on September 1st, 2013.


Underhell DOES NOT REQUIRE HALF LIFE 2 to function, only Source SDK BASE 2007
(Go in your tools tab of your Steam library to install it, it's free !)


In Underhell you play as Jake Hawkfield, a Special Weapons and Tactics officer who recently married and moved in with his wife.

But soon after this happy event, Jake's wife dies under mysterious circumstances, leaving only clues that suggest she committed suicide. Jake falls apart. Only his boss, mentor, and best friend Frank is there to help him get over his grief.

The game begins with a wake up call from Frank telling Jake to come down to the station. An armed group of highly trained soldiers has taken control of a hospital and all its personnel.

But Jake will soon realize that this is more than just a hostage situation…


The Original Soundtrack for Underhell is being entirely composed by Tom Stoffel
If you want to purchase the OST to support the Music Composer, you can do so at:

Chapter 1 OST
Prologue OST

Official Website:

Official ModDb Page:

Underhell Official Steam Group
Popular Discussions View All (54)
Jan 7 @ 11:41pm
"Waiting is hard"
Sep 11, 2015 @ 3:35pm
Theory thread
Jan 9 @ 9:40am
That waiting... Has killed me.
< >
ϟ Dr. Heavy Pootis-Man ϟ Feb 7 @ 4:32pm 
Can they crawl throught vents too?
Kgamer Feb 3 @ 7:34am 
gamergod7676, do as the trailer says, wait.
gamergod7676 Jan 24 @ 8:39am 
So Mxthe, if you could stop being a Steam potato and actually get this game set for official release on here, that would make life so much easier for us.
WindowsXP. Jan 18 @ 5:59am 
This is the best mod, the most exciting.
Schütze Fischer Jan 16 @ 5:52am 
Очень классная игра, надеюсь она появится в стиме!!
GuyOnAChair Jan 9 @ 3:02am 
What happened?
风暴弗里曼 Jan 5 @ 4:28am 
Sgt.Dornan Jan 2 @ 6:04pm 
best thing along with nightmare house 2
SEXYASSGAYFISH Dec 31, 2015 @ 10:06pm 
underhell is lit in the butt
[CRP] Gwenvael_095 Dec 28, 2015 @ 6:31am 
I remember when i lunch the game... i didn't expect a horror game but only a action game without scare, puzzle, stategy.
And this is that who make the game cool than other. It's there are many thing who we don't expect.
Just for say it's a great mod, one of the best i played.
Waiting for the chapter 2 ;)