Commonwealth Underground and Forgotten Spaces
⚪ Last updated 2019⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 4.3% endorsement rate — high engagement, a strong quality signal
- 🏆 #18 of 18 Locations - New mods in this game by downloads
📋 About This Mod
Commonwealth Underground and Forgotten Spaces
On the day nuclear fire turned the world to ash, urban areas were
affected by the onslaught. Buildings collapsed, subways
and new pockets were created by the upheaval.
Survivors took shelter
where they could, making a new home out
of whatever they could.
These poor souls often died slowly and painfully as radiation and
took them. Some survived as ghouls, others banded into
the earliest
raider tribes.
By the time of the Sole Survivor, these underground and forgotten
can be found throughout the Commonwealth. Some occupants
be open to visitors.
Features
Version 2
-9 new interior areas added to the Commonwealth,bringing the total to 20 new areas to explore. Sizes range from two small rooms to large connected areas.
-Version 2 includes two side quests to discover!
-All areas navmeshed, test with companion, and scaled to the player’s level.
-Interiors include bomb shelters, Subway tunnels, military bunkers, sewers, and
-Some interiors are connected allowing alternate travel routes through some
areas.
-More space to explore, more loot for settlements and mods, and more
stories to be found.
-The Commonwealth is a big place and a few new manholes and trap doors might not be
obvious, so location spoiler text file
included.
Adds 20 new underground interior spaces to the Commonwealth, expanding exploration options for Fallout 4 players. A well-received location mod with over 1,000 endorsements, last updated in 2019.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with over a thousand endorsements (1,042) and 24k downloads.
- Adds a solid chunk of new content—20 new underground spaces to poke around.
- Simple concept, but it's exactly what it says: more places to explore in the Commonwealth.
⚠️ Cons
- Last updated in 2019, so it might have compatibility issues with newer mods or game updates.
- No details on the size or quality of the interiors—could be hit or miss.
- Potential conflicts with other mods that alter the same locations or add their own underground spaces.
For Fallout 4 explorers who've memorized every vanilla dungeon and crave fresh places to loot and fight. If you're a completionist who wants to see every corner of the Commonwealth, this is a must-have. Skip if you're looking for quests or story content—this is purely about new spaces to discover.
💡 Beginner Tips
- Use a mod manager like Vortex or Mod Organizer 2 to install and manage this mod easily.
- Check your load order—place this mod after other location mods to avoid conflicts.
- If you're on PC, make sure you have the game's script extender (F4SE) if required by other mods, though this one likely doesn't need it.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- Danks
- Version
- 2.1
- Downloads
- 24,409
- Endorsements
- 1,042
- Category
- Locations - New
- Created
- 10/28/2017
- Updated
- 8/31/2019
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
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