Source-checkedMaps & scenarios

gm_moebius | Underground Map

by cena · for Garry's Mod

https://i.imgur.com/ZqoJ5Z8.png PLEASE READ THE DESCRIPTION, USE WEATHER ADDONS ON YOUR OWN RISK. If mushrooms are acting strange and are stretching out try to switch your gmod to x86 version by…

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8 mo agoLast updated
Steam WorkshopSource

About gm_moebius | Underground Map

From Steam Workshop

https://i.imgur.com/ZqoJ5Z8.png PLEASE READ THE DESCRIPTION, USE WEATHER ADDONS ON YOUR OWN RISK. If mushrooms are acting strange and are stretching out try to switch your gmod to x86 version by…

PLEASE READ THE DESCRIPTION, USE WEATHER ADDONS ON YOUR OWN RISK.

If mushrooms are acting strange and are stretching out try to switch your gmod to x86 version by going into Options -> Game versions

Presenting THE MAP, the first fully featured and highly detailed underground map in Gmod. This map was created for the Underground Worlds Map Contest organized by the Hammer Editor Development Group in almost under two months.

During development, we did not really have a clear idea of what we were doing at first, but eventually we settled on a very underexplored and specific niche in Gmod: a cave map. We were heavily inspired by a mix of various games like Elden Ring, Sekiro, and Subnautica. As a result, we decided to try a somewhat mythical, slightly fantasy style for the map while focusing on maintaining a high level of detail.

In general, the map is suitable for exploratory gameplay, sandbox, or roleplay use. However, we still recommend experiencing the map for the first time in a way that allows you to explore it fully and discover all of its features.

Original soundtrack composed by B4N5H33 - https://www.youtube.com/watch?v=e7aygJEqWVM

Basic navmesh - https://steamcommunity.com/sharedfiles/filedetails/?id=3683202966

Credits:

Cena - Mapping, texturing, and overall insane amount of manual work. Kawasaniac - Modelling, texturing, vibes. B4N5H33 - Sound design, music, playtesting. The Immortal - Playtesting. Commander - Playtesting. Quixel, Valve, Epic Games, FromSoftware, Dear Esther and many more - Assets, tools, ideas and vibes.

Disclaimer:

1) It is recommended to have music, HDR and color correction enabled to experience the map fully. 2) Unfortunately due to how the general fog system works on the map, we do not recommend you to use any custom weather addons or manipulate the environment in any unpredictable manner aside from default gmod tools. Use other global addons on your own caution. 3) You can disable the push script for the sphere, waterfall, and river in the admin room!

Tags: [spoiler]map cave cavern underground fantasy mythical mushroom deep dark grim exploration fog atmosphere[/spoiler]

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 8 mo ago.

gm_moebius | Underground Map 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
2026-03-11, released 2026-03-11

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of gm_moebius | Underground Map.

Run gm_moebius | Underground Map 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 catalog
Listed on Steam Workshop as “Maps”

Maps & scenarios

Custom maps, arenas and scenarios to play on.

Compatibility

Game
Garry's Mod

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-11-01Open ↗
  • ✓Authorcena, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

gm_moebius | Underground Map, answered

Generated from the mod’s own source data.

Is it free?

Yes. gm_moebius | Underground Map is free to download from Steam Workshop.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run gm_moebius | Underground Map on a Garry's Mod server.

Deploy in about a minute from $3.99 a month, then add gm_moebius | Underground Map in one click.