In development since 2017, OpenCAGE is a suite of open-source community-created mod tools for the game Alien: Isolation which open the door to the creation of custom campaigns, maps, models, and various game configurations. Today, it's arriving on Steam for the first time, making it easier than ever to get involved with an awesome community building new experiences inside one of the greatest horror games ever made!
OpenCAGE contains various editors which you can launch from the main landing screen, these are the:
- Asset editor - A tool to import/export textures, models, UI, and animations
- Configuration editor - A tool to modify a range of game configurations (including weapons, ammo, NPC viewcones and locomotion, player attributes, and more)
- Cathode script editor - A tool allowing full access to the game's scripting system (including level population, missions, characters, weapons, and more)
- Behaviour tree editor - A tool giving full access to every behaviour tree in the game
- Launch game tool - Functionality to launch the game directly to a level with various optional extras (including Cinematic Tools, debug helpers, and more)
There's also functionality for creating/managing/restoring backups of levels, and reverting configurations and behaviour trees.
If you have Alien: Isolation installed via Steam, install OpenCAGE to the same Steam library folder and you're good to go. If you've installed the game from a different source (Epic, or GoG), OpenCAGE will ask you to locate it when you first start up the toolkit.
To learn more about the tools, check out the documentation site, and join the Discord!
OpenCAGE continues to be expanded and developed over time - if you're interested in contributing to the project, check out the GitHub page to learn more!
Future planned functionality includes support for sound editors, 3D visualisers, and improvements to the configuration editor UIs. Please drop any feature requests or bugs over on the GitHub issues page!
Follow the creator MattFiler on X (Twitter) or Bluesky for future news and updates.
OpenCAGE is in no way related to (or endorsed by) Creative Assembly or SEGA.
Alien: Isolation must be purchased and installed to use OpenCAGE.