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GSM

GSM is a free, open-source backup utility for game saves on Linux and Windows.

Place
#18 of 27
Score
5.9
GSM's website

What GSM is

GSM is a free, open-source backup utility for game saves on Linux and Windows. It creates versioned backups, uploads them to cloud storage, synchronizes a backup library between machines, and restores saves when needed. Automatic game detection uses Ludusavi, while manual backups cover titles it does not detect. Rclone handles cloud uploads, and GSM creates SHA256 integrity files for backups. Retention can be configured separately for each game. Restore choices include the latest backup, every backup, or the latest backup for a selected game. The project is designed for shared Linux and Windows libraries without one system corrupting or deleting the other’s data. Linux offers graphical and text interfaces, plus AppImage support. Windows provides a graphical build and a single-file EXE. GSM uses Rclone’s copy command for cloud operations. The repository is published under the MIT License, and the releases page lists “GSM - Definitive edition.” The listed GSM plan costs nothing.

Good

  • Free and open-source under the MIT License
  • Automatic detection uses Ludusavi
  • Supports cloud uploads through Rclone
  • Per-game retention settings available
  • Linux GUI, TUI, and AppImage support

Watch out

  • Supports only Linux and Windows
  • Undetected games require manual backups
  • Cloud operations depend on Rclone

Who it suits

It suits Linux and Windows gamers who want versioned, cloud-synchronized save backups with automatic or manual game selection.

Verdict

GSM provides cross-platform save backup, synchronization, integrity checks, and restore controls at no cost. Its automatic detection is complemented by manual game setup when needed.

Plans and prices

From GSM's own pricing page, checked 7 Oct 2026.

All about pricing
PlanPriceWhat it gives you
GSMFreeFree and open source

The facts

Each one read from GSM's own pages, with the date it was checked.

What it does

Automatic detection
It uses Ludusavi for automatic game save detection.checked 7 Oct 2026
Backup integrity
It creates SHA256 integrity files for backups.checked 7 Oct 2026
Cloud uploads
It uses Rclone to upload backups to cloud storage.checked 7 Oct 2026
License
The repository is published under the MIT License.checked 7 Oct 2026
Manual backups
It supports manual backups for games it does not detect automatically.checked 7 Oct 2026
Purpose
GSM creates versioned backups of game saves, uploads them to cloud storage, synchronizes the backup library between machines, and restores saves when needed.checked 7 Oct 2026
Release
The GitHub releases page lists a release titled “GSM - Definitive edition.”checked 7 Oct 2026
Restore options
It can restore the latest backup, all backups, or the latest backup for a specific game.checked 7 Oct 2026
Retention
Backup retention can be set per game.checked 7 Oct 2026
Safety behavior
GSM uses the rclone copy command for its cloud operation.checked 7 Oct 2026

Where it runs

Cross-platform behavior
The project says it is designed to work across Linux and Windows without one side corrupting or deleting the other.checked 7 Oct 2026
Linux interfaces
It offers a Linux GUI and TUI, plus AppImage support.checked 7 Oct 2026
Windows distribution
It offers a Windows GUI and a single-file EXE build.checked 7 Oct 2026

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