GSM
What it is
GSM is a free tool for creating versioned backups of game saves, sending them to cloud storage, sharing a backup library between Linux and Windows machines, and restoring saves when needed. It uses Ludusavi to detect supported game saves automatically and also allows manual backups for games it does not detect. Rclone handles cloud uploads, while SHA256 integrity files help check backup data. Retention can be configured separately for each game. Restore options include the newest backup, every backup, or the newest backup for a selected game. The project is designed for Linux and Windows systems to share a library without one side corrupting or deleting the other’s data. Linux users have a graphical interface, a text interface, and AppImage support; Windows users can choose a graphical build or a single-file EXE. GSM uses Rclone’s copy command for cloud operations. The repository is under the MIT License, and its releases page lists “GSM - Definitive edition.”
For and against
For
- Free plan and open-source MIT license
- Automatic detection uses Ludusavi
- Per-game retention settings
- Linux GUI and TUI; Windows GUI and EXE
Against
- Cloud uploads require Rclone
- Windows and Linux are the listed platforms
The verdict
GSM combines versioned game-save backups, cloud uploads, and multiple restore choices. Its Linux and Windows interfaces offer options for users working across those systems.
Who it suits
GSM suits players who want to preserve and synchronize game saves across Linux and Windows machines. Manual backups may help when automatic detection does not find a game.
Plans and prices
GSM
Free and open source
Read 7 Oct 2026 · github.com
On the record
- Automatic detection
- It uses Ludusavi for automatic game save detection.github.com · read 7 Oct 2026
- Backup integrity
- It creates SHA256 integrity files for backups.github.com · read 7 Oct 2026
- Cloud uploads
- It uses Rclone to upload backups to cloud storage.github.com · read 7 Oct 2026
- Cross-platform behavior
- The project says it is designed to work across Linux and Windows without one side corrupting or deleting the other.github.com · read 7 Oct 2026
- License
- The repository is published under the MIT License.github.com · read 7 Oct 2026
- Linux interfaces
- It offers a Linux GUI and TUI, plus AppImage support.github.com · read 7 Oct 2026
- Manual backups
- It supports manual backups for games it does not detect automatically.github.com · read 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.github.com · read 7 Oct 2026
- Release
- The GitHub releases page lists a release titled “GSM - Definitive edition.”github.com · read 7 Oct 2026
- Restore options
- It can restore the latest backup, all backups, or the latest backup for a specific game.github.com · read 7 Oct 2026
- Retention
- Backup retention can be set per game.github.com · read 7 Oct 2026
- Safety behavior
- GSM uses the rclone copy command for its cloud operation.github.com · read 7 Oct 2026
- Windows distribution
- It offers a Windows GUI and a single-file EXE build.github.com · read 7 Oct 2026
