Steam Manifest Decryptor (SMD)

Download and decrypt Steam manifest files. Basically imitates what steamtools does and greenluma couldn't.

Educational use only. This project is provided for educational purposes only. Use at your own risk.

Building

It's best if you have uv installed. Download from Releases if you don't want to build it yourself.

1. Clone the repo
2. Run uv sync to install dependencies
3. Download gbe_fork_tools (compiled) and paste the generate_emu_config folder inside \third_party\gbe_fork_tools. It should look something like this now:

├───gbe_fork
├───gbe_fork_tools
│   └───generate_emu_config
│       └───_internal
│       └───generate_emu_config.exe
└───steamless

4. Either run uv run main.py to directly run it or uv run pyinstaller main.spec to build it. You can also build it with build.bat for convenience.

Optional (Requires GCC Compiler):

1. CD into the c folder and build the MIDI Player with:
   gcc midi_player_lib.c -shared -fPIC -o midi_player_lib.dll
2. Download this soundfont (WTFPL 2 License) and place it in the c folder. Any soundfont works but just note that bigger files will use more memory.
3. Download this MIDI and place it in the c folder.

Pre-requisites

This program requires that GreenLuma is installed, preferably in normal mode. Other modes work too but you'll have to specify the AppList folder location manually.

Features

• Downloads and decrypt latest manifest
• Downloading lua files from either Manilua (API key required) or oureveryday
• Stores imported lua files for later use (e.g. updating the game)
• Cracks games with gbe_fork
• Removes SteamStub DRM with Steamless
• Via gbe_fork_tools :
  • steam_settings folder generation
  • Steam\appcache\stats .bin file generation (for Steam achievements directly in the Steam overlay/library)
• Basic AppList folder management (You can add and delete IDs for now)

Contributing

Whenever you update the dependencies, run this as well to update the requirements.txt file for non-uv users.

uv pip compile pyproject.toml -o requirements.txt

FAQ

Why use this?

I guess if you're paranoid about Steamtools and want an open-source equivalent. It's not exactly the same but gets the main functionality down. I heard word that Steamtools is actually safe (as long as you're getting it from the right source), so yeah, your decision.

How do I get achievements working?

There's basically two methods: UserGameStatsSchema method or gbe_fork method.

UserGameStatsSchema method

Your achievements can show up in the overlay and library, but it depends on what mode you installed Greenluma in. It seems to work best in stealth mode and stealth mode (any folder), but I haven't tested this. In normal mode, you can get achievements but it doesn't notify you when you get them. Although, in other games it does... Your achievement data will be stored in Steam\appcache\stats like any genuine game although it won't be backed up to the cloud. There's also another catch: You can only view the achievement when you switch Steam to offline mode. And I should mention that Steam will fail to launch with Greenluma if you close it while it's still in offline mode. My tool has the Offline Mode Fix menu to deal with this.

gbe_fork method

You're basically applying a steam emulator and making the emulator handle the achievements. Just crack your game using the tool and confirm when it asks you to generate achievements for gbe_fork. Your achievements won't show up in the Steam overlay or in your library page though. Your achievement data will be in AppData\Roaming\GSE Saves. You can also use this if you want to open your game without needing to also open Steam.

What about cloud sync?

Nope, can't help ya with this one.

Can I play online games?

Usually no. All it does is just download Clean Steam Files, but there have been a few cases where you can. Just test it out.

Can I play dеոսνо/аոtі-сһеаt games?

Out of the box, no. For аոtі-сһеаt, If you're lucky, you'll only have to apply a fix someone else made. With dеոսνо, you'll have to apply an "offline activation". It's a bit of a hassle and I won't get into it. You're on your own with this one.

I get "Content Still Encrypted" error

Your decryption key is missing in the config/config.vdf folder. Try to import the lua file again.

I get "No Internet Connection" error

Usually happens when you don't have the manifest or your manifest file is outdated. Try to import the lua file again.

To-Do

• keep track on if game was cracked / steamless'd before
  • prompt to automatically crack and steamless if so
• if given a ZIP, use existing manifest instead of redownloading
• Use gbe_fork_tools source code instead of using a compiled version

Licenses

This project includes the following third-party components:

• gbe_fork (LGPL-3.0)
• gbe_fork_tools (LGPL-3.0)
• Steamless (CC BY-NC-ND 4.0)
• TinyMidiLoader (ZLIB)
• TinySoundFont (MIT)
• miniaudio (MIT)

Full license texts are available in the third_party_licenses directory.

Credit

Credit to RedPaper for the Broken Moon MIDI cover, originally arranged by U2 Akiyama and used in Touhou 7.5: Immaterial and Missing Power. Touhou 7.5 and its related assets are owned by Team Shanghai Alice and Twilight Frontier. SMD is not affiliated with, endorsed by, or sponsored by either party. All trademarks belong to their respective owners.