steam-compatdata-mover

Interactive Bash script for moving Steam steamapps/compatdata folders (Proton prefixes/saves) from secondary drives (like NTFS) to your native main Steam library, replacing the original directories with symbolic links.

What it Fixes

• NTFS Ownership Errors: Fixes the common Proton/Wine error: wineserver: .../compatdata/.../pfx is not owned by you (since NTFS partitions lack Unix ownership features required by Wine).
• Broken/Outdated Symlinks: Automatically heals and redirects legacy or broken symlinks pointing to outdated paths.
• Existing Symlinks: Cleanly resolves pre-existing individual game symlinks inside the secondary library's compatdata directory without causing conflict errors.

Usage

./steam-compatdata-mover.sh [options]

Options:

• -y, --yes : Auto-confirm all prompts (useful for automation).
• -a, --all : Select and process all detected movable libraries.
• -h, --help : Show help instructions.

Note: Close Steam before running the script. Do not run it with sudo.

Notes

• Automatic Destination: <main Steam library>/steamapps/compatdata
• Headless automation: Running with -a -y is ideal for login scripts.
• Data safety: Destination folders are validated with disk space checks before copying to prevent file corruption.