Official Oblivion Construction Set
⚪ Last updated 2008⚠️ 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
- 👍 3.8% endorsement rate — high engagement, a strong quality signal
- 🏆 #2 of 10 Official Plugins mods in this game by downloads
📋 About This Mod
- Name
- Construction Set
- Version
- 1. 2. 404
- Source
- cs.elderscrolls.com
- Tutorials
- cs.elderscrolls.com
- Requirements
- Recommended
Description The Elder Scrolls Construction Set allows you to edit and create content for The Elder Scrolls IV: Oblivion.
The Elder Scrolls IV: Oblivion is required to create and play content created with The Elder Scrolls Construction Set. However, the Construction Set will install and work without the game.
Updates 1. 2. 404 New Features
- Spell checking functionality
1. 2. 404 Bug Fixes
- Fixed error with preview window not displaying art properly.
- The Construction Set now increments the version on plugins so that old Oblivion executables will not load a plugin saved with the new Construction Set. The Oblivion executable must be 1. 2 or higher to match the new Construction Set executable. Simply install the latest Oblivion patch to get the latest executable.
- - Under File, there is an new option to Combine Loaded Plugins. When this is selected, the user is asked for a filename. Once a valid file is selected, all loaded data that came from a plugin is resaved as a part of the new file. In order to do this, any new objects are given new IDs on entry into the new file. This means that if you have plugin A.esp and B.esp and C.esp loaded and save your game, and then merge those plugins into ABC.esp, you may have problems trying to load your save with ABC.esp.
- - Fixed a crash with DeleteAllCells option in the Heightmap Editor.
- - Fixed bug in Region Editor preventing cutting and pasting in object list.
- - Export functionality: Adding bExportPluginOnly=1 to General section in constructionset.ini lets you export only the data that is saved in the loaded plugin.
- - Fixed a bug where references generated by the Region Editor were incorrectly flagged as being owned by the user and not the region.
The Official Oblivion Construction Set is Bethesda's modding tool for The Elder Scrolls IV: Oblivion, uploaded to Nexus as an alternate mirror. It includes all official versions released, making it essential for creating or editing Oblivion mods. With 7,827 endorsements and 205,893 downloads, it remains a trusted resource for the modding community.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Straight from Bethesda, so you know it's the real deal
- Massive download count (205k+) shows it's the go-to source for modders
- Having all versions in one place is handy for compatibility testing
⚠️ Cons
- Last updated in 2008, so it's ancient by modding standards
- No instructions included—you're on your own if you're new to modding
- Only useful if you actually want to build mods, not for players
For Oblivion mod authors and aspiring modders who need the official tool to create or edit mods. Also for players who want to tweak their game or extract assets. Skip if you're just looking to install mods—this is a development tool, not a gameplay mod.
💡 Beginner Tips
- Make sure to run the Construction Set as administrator if you're on Windows 10/11 to avoid save issues.
- Start with the latest version for the most features, but keep older versions around for compatibility with older mods.
- The Construction Set is separate from the game—you'll need to install Oblivion first, then use this tool to edit mods.
📊 Mod Details
- Game
- Oblivion Mods
- Author
- Bethesda
- Version
- 1.2.404
- Downloads
- 205,893
- Endorsements
- 7,827
- Category
- Official Plugins
- Created
- 6/5/2007
- Updated
- 1/8/2008
🔧 How to Install Oblivion Mods
Download from Nexus.
📖 Full step-by-step install guide for Oblivion →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Oblivion commands, item IDs, and more.
Keep browsing — more Oblivion mods await