SirLach's Ultimate Defenses - Sim Settlement Add-on
⚪ 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
- 👍 4.6% endorsement rate — high engagement, a strong quality signal
- 🏆 #2 of 20 Sim Settlements mods in this game by downloads
📋 About This Mod
Sim Settlements Version 4. 0. 5 or Greater
All Fallout 4 DLC
Sim Settlements - Conqueror is required if you want the special bonuses some of the plots provide.
Also part of the HUGE Sim Settlements Mega Pack - Year Three
This mod was inspired by and uses assets from Nutulator's awesome Sandbag Fortifications Mod.
The author very kindly gave permission for me to use his designs and build my dream defensive structures. If you love this add-on please download and endorse his mod!
Also recommended is TheLich's Place Everywhere.
Have you found yourself in a never ending cycle of violence and conflict? Or maybe you are having a little local difficulty with some overly aggressive neighbours? Ultimate Defenses has got you covered! It is a collection of military themed plots that will help you keep the bad guys at bay.
Contents
New Martial Plots: 11
New Recreational Plots: 1
New Conqueror Plot Subtypes: Armory, Field Hospital and Mess Hall. (Provide Bonuses to Soldiers)
Building Features
Settler Navigation: Yes
Construction Stages: No
Randomized Clutter: No
Performance Settings: Yes
Martial Plots
Outpost - 1 x 1
Field Hospital - 2 x 2 - Conqueror Bonus Plot
Battle Boat 2 x 2 - Oversize - Player Select Only
Sniper Nest - 1 x 1
RHS Wall Corner - 2 x 2
LHS Wall Corner - 2 x 2
Gatehouse - 2 x 2
Guard Tower - 2 x 2
Armory - 2 x 2 - Conqueror Bonus Plot
Command Tent - 2 x 2
Missile Truck (For Pra) - 2 x 2 (New in v4)
Recreational Plots
Mess Hall - Conqueror Bonus Plot - Oversize - Player Select Only
Disclaimer: This is my second SS add-on pack and FO4 mod. This was made possible by the amazingly detailed tutorials available in the Sim Settlements - Builder's Toolkit! If you have ever wanted to get into modding or just see how all of this is possible then I highly recommend you go and check it out.
Future Plans: My plan with this add-on pack is to add another 25+ plots based on supporters suggestions and ideas. If you like this mod and would like to see more or have any suggestions please let me know over in my area on the Sim Settlements Forums.
All Hail the mighty Kinggath - May he mod forever!
To Pra, XV, Raybo, UitUit, Kristin, Marc and John for their ideas and support.
And all the other wonderful modders and supporters on the Sim Settlements Supporters and Development Discord Servers![/c
SirLach's Ultimate Defenses adds military-themed Martial and Recreational plots to Sim Settlements, helping you fortify settlements against raiders, mutants, and Institute attacks. With over 1,000 endorsements and 23,000 downloads, it's a popular choice for players who want defensive options. Last updated in 2019, it may require compatibility checks with newer Sim Settlements versions.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community-approved with 1,063 endorsements and 23,304 downloads.
- Adds a unique military aesthetic to your settlement defenses.
- Fills a niche for players who want more combat-oriented Sim Settlements plots.
⚠️ Cons
- Last updated in 2019 — may be outdated for current Sim Settlements versions.
- Requires Sim Settlements to function, which isn't explicitly stated but implied.
For Sim Settlements players who want to beef up their defenses with military-themed plots. If you're tired of vanilla defenses and want a cohesive military look, this is for you. Skip if you're looking for gameplay overhauls or if you're on the latest Sim Settlements version without compatibility patches.
💡 Beginner Tips
- Make sure you have Sim Settlements installed and updated, as this mod is an add-on.
- Check the mod's comments section for any compatibility notes with Sim Settlements 2 or other add-ons.
- Use a mod manager like Vortex or Mod Organizer 2 to handle installation and load order.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- SirLach
- Version
- 4
- Downloads
- 23,304
- Endorsements
- 1,063
- Category
- Sim Settlements
- Created
- 5/16/2019
- Updated
- 8/6/2019
🔧 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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