Garry's Mod

Garry's Mod

2,176 ratings
gm_Underground_IV
5
3
   
Award
Favorite
Favorited
Unfavorite
Content Type: Addon
Addon Type: Map
Addon Tags: Build, Roleplay, Realism, Water
File Size
Posted
Updated
60.304 MB
2 Mar, 2013 @ 3:53pm
9 Mar, 2013 @ 5:37pm
4 Change Notes ( view )

Subscribe to download
gm_Underground_IV

In 1 collection by aagamer
Triple A Map Collection
7 items
Description
I am happy to say that gm_Underground_IV has been rereleased on Garry's mod, with several big improvements!
The map requires Half Life 2: Episode 2 and Half Life 2: Episode 1 to work properly, if you don't have them installed and mounted, you will have tons of errors.
I have worked for a very long time on this map, and while it's been released, I will continue to make bug fixes and small additions as I hear feedback.
Features:

Large underground military base with several different sections.
Surface level set in an abandoned wooded area.
Working Missile silo.
Buildings for Role Play.
NPC nodes.
Several operatable blast doors.
And more stuff I can't list here!

I hope you all enjoy this map, if you do, please give it a like and favorite it! Also check out my other maps and my group, TripleAMaps.
https://steamhost.cn/steamcommunity_com/groups/TripleAMaps

Also, if you're going to host this map on a server, tell me about it, I'd love to play!

To open the missile silo, and fire the missile you have to find the control room in the lower section of the base. In there is a green switchbox from Dr. Kliener's lab in hl2. Open it and pull the lever activating the alarm, once you've done that, you will see two previously unit screens turn red in the control room with a message to enter launch keys. Under each screen is a button that will be glowing red, press both of them until they turn green, and the missile will launch after 10 seconds.

You MUST have Half Life 2: Episode 2 and Half Life 2: Episode 1 installed on your computer.
Popular Discussions View All (18)
46
22 Jul, 2023 @ 12:06pm
Other very interactive maps like this?
Doctor Delete
39
11 Dec, 2016 @ 9:37am
Sugestions
Shadow of Avalar
9
25 Jun, 2021 @ 3:32am
Launch the Missle
Glimmo
933 Comments
TankCatapult 25 Jun @ 12:21am 
Bam4000, it's Ogdens' Nut Gone Flake.
alwayscore 6 Jun @ 3:56pm 
A way to disable the reactor to turn off the power would be interesting
Bam4000 17 Mar @ 1:22pm 
What is the song that plays in the office near the surface?
GOREYBITS 15 Mar @ 10:03am 
i looked using the wayback machine and theres way too many maps to know for sure, ill have to keep looking for an archive of the maps
aagamer  [author] 12 Mar @ 9:06pm 
They were on garrysmod.org back in the day. Not sure if they're still there
GOREYBITS 9 Mar @ 12:33pm 
wheres gm_underground 1-3
DemonBuddyRP_Plays 10 Feb @ 3:16pm 
i can't even download half life 2 episode 1-2 only the sound track so how am i supost to get rid of the missing textures and the errors
China Be Chillin 11 Jan @ 3:42pm 
There needs to be more maps like this
aagamer  [author] 9 Jan @ 7:28pm 
Thanks! I'm glad people still have fun with it.
Vaele 1 Jan @ 9:29pm 
Still one of the greatest underground maps ever. I know it has been a while, but awesome job on this. :steamthumbsup: