About gm_Underground_IV
From Steam WorkshopI 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…
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. http://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.
Highlights
From source dataFootprint
Rated a light load on a server.
Last update
Its author last shipped an update 14 yr ago.
gm_Underground_IV on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Garry's Mod servers. We download it from Steam Workshop, place it, and restart the server.
- Server load
- light
- Smallest plan we suggest
- Garry's Mod — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2013-03-10, released 2013-03-10
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Workshop |
From 1 recorded build of gm_Underground_IV.
Run gm_Underground_IV on a Garry's Mod server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogMaps & scenarios
Custom maps, arenas and scenarios to play on.
Compatibility
- Game
- Garry's Mod
Verified at the source
- ✓Steam WorkshopOfficial listing, checked 2026-10-10Open ↗
- ✓Authoraagamer, as published on Steam Workshop
- ✓LicenseNot published by the sourceFree
