InFamous Mod Manager

Cross-platform desktop mod manager for the PlayStation 3 versions of InFamous, InFamous 2, and InFamous: Festival of Blood running through RPCS3.

The application is built with Avalonia UI, .NET, and CommunityToolkit.Mvvm.

Current features

• Game selection for InFamous 1, InFamous 2, and InFamous: Festival of Blood.
• English and Russian interface languages.
• Native folder picker for locating the RPCS3 dev_hdd0/game directory.
• Validation of the expected game folders:
  • NPUA80480 — InFamous 1;
  • NPUA80638 — InFamous 2;
  • NPEA00322 — InFamous: Festival of Blood.
• Extraction of install1 and install2 PSARC archives into the selected game's USRDIR directory.
• PSARC extraction with zlib and uncompressed-block support.
• Automatic backup of original .psarc_s archives after successful extraction.
• Lossless extraction of individual .xpp and .xpps PACK containers:
  • extracts the original header, resource table, and payload;
  • extracts indexed resource views and framed metadata chunks;
  • detects embedded DXT1/DXT3/DXT5 textures, corrects their vertical orientation, and writes ready-to-use DDS files;
  • writes a JSON manifest with offsets, sizes, types, ranges, and SHA-256 hashes;
  • supports InFamous 1 XPP, InFamous 2/Festival of Blood XPPS, and empty archive stubs.
• Native .xpp/.xpps mod-file and mod-package folder pickers.
• Mod installation into the unpacked game directory:
  • normalizes mod file names to lowercase with underscores;
  • finds the matching original .xpp or .xpps file;
  • backs up the original file before installing the mod;
  • reports successful and failed operations in the UI.
• Modular mod-package installation:
  • reads package metadata from mod.json and choices from modular.json;
  • supports texture_patches/<archive>/<offset>_<size>_<format>_<mips>.dds layouts;
  • validates DDS metadata against the original PACK texture descriptor;
  • converts conventional DDS orientation to the game's texture orientation and installs DXT1/DXT3/DXT5 patches at the correct logical payload offset;
  • applies multi-archive packages transactionally and records selected modules in user-data.json;
  • restores all original game archives recorded in the installation history.

Backups and user-data.json are stored beside the application executable. Backups are grouped by game ID in the backup directory.

Planned features

• Rebuild .xpp and .xpps archives from extraction manifests.
• Display the list of installed mods and modified files.
• Restore individual original files.
• Better progress reporting and cancellation for long extraction operations.
• Additional validation and recovery options for incomplete installations.
• More interface languages.
• Settings for configurable RPCS3 and backup directories.

Development

Requirements:

• .NET 10 SDK

Build the project:

dotnet build

Run the application:

dotnet run

Third-party notices

The PSARC extraction implementation is based on the extraction approach from the local PSARC-Tool project. See THIRD_PARTY_NOTICES.md for license information.