PicoScope 7 Software
Available on Windows, macOS and Linux
| Tool / Library | Language | Platform | Key Features | | :--- | :--- | :--- | :--- | | | JavaScript | Web Browser | No-install web tool, open source on GitHub, allows instant file testing | | @trucky/sii-decrypt-ts | TypeScript | Node.js | Full TypeScript support, automatic format detection, zero external dependencies | | SIIDecryptSharp | C# | .NET / NuGet | NuGet package for integration, reserialization to plaintext | | DecryptTruck | Rust | Windows & Linux | Command-line utility with drag & drop, based on original SII_Decrypt logic |
SII (Sims II) files are a type of binary file used by the Sims 2 game to store data on Sims, objects, and other game assets. However, these files are encrypted, making it difficult for modders to access and modify their contents. SII decryption refers to the process of cracking this encryption, allowing modders to extract, modify, and create custom content.
Open your game.sii file with Notepad++. If successful, the text will now be completely legible. Common Modifications You Can Make
Recognizing the limitations of a discontinued Pascal tool, the community built modern alternatives with better support:
The project reached alpha release, though "the most notable thing it's missing right now is the reserialization back into a string"—meaning it can decrypt but not yet re-encrypt modified files.
| Tool / Library | Language | Platform | Key Features | | :--- | :--- | :--- | :--- | | | JavaScript | Web Browser | No-install web tool, open source on GitHub, allows instant file testing | | @trucky/sii-decrypt-ts | TypeScript | Node.js | Full TypeScript support, automatic format detection, zero external dependencies | | SIIDecryptSharp | C# | .NET / NuGet | NuGet package for integration, reserialization to plaintext | | DecryptTruck | Rust | Windows & Linux | Command-line utility with drag & drop, based on original SII_Decrypt logic |
SII (Sims II) files are a type of binary file used by the Sims 2 game to store data on Sims, objects, and other game assets. However, these files are encrypted, making it difficult for modders to access and modify their contents. SII decryption refers to the process of cracking this encryption, allowing modders to extract, modify, and create custom content. sii decrypt scs forum
Open your game.sii file with Notepad++. If successful, the text will now be completely legible. Common Modifications You Can Make | Tool / Library | Language | Platform
Recognizing the limitations of a discontinued Pascal tool, the community built modern alternatives with better support: Open your game
The project reached alpha release, though "the most notable thing it's missing right now is the reserialization back into a string"—meaning it can decrypt but not yet re-encrypt modified files.