About Underground Bases
From Steam Workshophttps://i.imgur.com/SGMylzO.gif https://iili.io/dwELU3g.png Take your DayZ survival to new depths with the Multi-Level Underground Bases Mod! This mod introduces a revolutionary concept, allowing you…

Take your DayZ survival to new depths with the Multi-Level Underground Bases Mod! This mod introduces a revolutionary concept, allowing you to build underground shelters with three distinct levels of upgrades.

Three Levels of Upgrades: Journey underground to craft your covert underground base across three distinct levels. Each level serves a unique purpose, from additional storage area to living quarters and beyond!
Strategic Advantage: Exploit the tactical opportunities offered by your multi-level underground base for observation, ambushes, and secure gear storage.
Personalization: Tailor each level to your preferences, whether it's for sleeping quarters, storage rooms, crafting areas, hatch camouflage, or even underground gardens.
Enhanced Security: Fortify your multi-level fortress with a code lock or combination lock!

How to build your Underground Base:
Level 1:
1. Choose Location: Find a flat, hidden spot for your base entrance. 2. Dig an Entrance: Use the shovel to dig a hole for the entrance. 3. Attach 6 wooden logs, 99 nails, 40 planks. 4. Drag a hatchet to hands and build level 1 underground hatch.
Level 2:
1. Drag a shovel to hands while inside your underground base, look at the floor/wall and "Upgrade Base". 2. Attach 6 wooden logs, 99 nails, 20 sheet metal, and 40 planks. 3. Put hatchet in your hands and "upgrade Base" to level 2.
Level 3:
1. Drag a shovel to hands while inside your underground base, look at the floor/wall and "Upgrade Base". 2. Attach 6 wooden logs, 99 nails, 20 sheet metal, and 5 concrete blocks. 3. Put hatchet in your hands and "upgrade Base" to level 3.

Thank you to DaemonForge, ChrisPBacon, Shelby, IceBlade, HunterzCZ, | RaG | Tyson, MDC, Gormirn, Lad, and BullsEyE for making this mod possible!

Join our discord to see up coming changes and future plans for this mod!
I do not authorize this to be re-packed, re-uploaded, or modified in any way.
Underground Bases is allowed to be used on monetized servers as long as you follow the monetization agreement given by Bohemia Interactive and you have the permission to do so by Bohemia Interactive.
If you like this mod and would like to support me, consider donating! 
Copyright 2026, DayZ Catalyst
Highlights
From source dataFootprint
A 251 MB download, rated a light load on a server.
Last update
Its author last shipped an update 19 mo ago.
Underground Bases on Nxeon
From our catalogue- One-click install
- Not available. One-click install isn't available for this game's mods yet. Download it and upload it to your server in Files.
- Server load
- light
- Smallest plan we suggest
- DayZ — 6 GB (6 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2025-04-02, released 2025-04-02, 251 MB
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Workshop |
From 1 recorded build of Underground Bases.
Dependencies
- Required: CF
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Underground Bases on a DayZ server
Deploy a server above, then upload the file in Files.
What kind of mod it is
From the catalogGameplay & overhauls
New mechanics, content and overhauls that change how the game plays.
Compatibility
- Game
- DayZ
- File size
- 251 MB
Verified at the source
- ✓Steam WorkshopOfficial listing, checked 2026-10-10Open ↗
- ✓AuthorShelby, as published on Steam Workshop
- ✓LicenseNot published by the sourceFree

