MattFiler CathodeLib by: MattFiler .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 15,161 total downloads last updated 8/12/2025 Latest version: 0.10.0 alien modding alien isolation mod tool file utility Provides support for parsing and writing common Alien: Isolation formats from the Cathode engine.