Firmament and Constellations MCO And SSL Alternatives
🟡 Updated this year⚠️ Install Order · 5 steps
1🛠️ SKSE64 — Skyrim Script Extender 64 Download ↗
2🔧 USSEP — Unofficial Skyrim Special Edition Patch Download ↗
3🖥️ SkyUI — SkyUI (MCM framework) Download ↗
4🧩 Address Library — Address Library for SKSE Plugins Download ↗
5🔧 SSE Engine Fixes — SSE Engine Fixes Download ↗
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.4% endorsement rate
- 🏆 #101 of 136 Gameplay mods in this game by downloads
📋 About This Mod
Adds new skill alternatives to Constellations and Firmament
🤖 AI-enhanced — based on mod data
Adds new skill alternatives to the Constellations and Firmament perk overhauls for Skyrim. A niche gameplay mod with 20 endorsements and 5,600 downloads, last updated January 2026. For players who want more variety in their perk choices without replacing the base mods.
✨ Key Features
Adds new skill alternatives to Constellations and Firmament
Compatible with Constellations and Firmament perk overhauls
📊 Pros & Cons
✅ Pros
- Decent download count (5,600) shows some interest
- Fills a niche for players who want more perk variety
- Recently updated (January 2026) so it's likely maintained
⚠️ Cons
- Low endorsement count (20) compared to downloads, so it may have issues
- Description is thin – no details on what the alternatives actually do
- Potential compatibility risk with other perk mods or patches
🎯 Is This For You?
For Skyrim players who use Constellations and Firmament and want extra perk options. Skip if you're not using those mods or if you prefer a more complete perk overhaul.
For Skyrim players who use Constellations and Firmament and want extra perk options. Skip if you're not using those mods or if you prefer a more complete perk overhaul.
📦 Install:Easy· Under 1 minute
💡 Beginner Tips
- Make sure you have Constellations and Firmament installed first, as this mod builds on them.
- Load this mod after the perk overhauls in your load order to ensure the alternatives apply correctly.
- Use a mod manager like Vortex or MO2 to avoid overwriting files manually.
📊 Mod Details
- Game
- Skyrim Mods
- Author
- biggieboss
- Version
- 1.0
- Downloads
- 5,600
- Endorsements
- 20
- Category
- Gameplay
- Created
- 1/20/2026
- Updated
- 1/20/2026
🔧 How to Install Skyrim Mods
Download from Nexus.
📖 Full step-by-step install guide for Skyrim →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Skyrim commands, item IDs, and more.
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