Free

EUKVault.
-A small Windows application designed to apply Windows CompactOS compression to selected folders, which is particularly useful for compressing PC game installations to save disk space.

Here is a summary of its main features:

• Smart Compression: It compresses folders using Windows' built-in Compact.exe tool, while automatically skipping file types that don't benefit from compression (like images, videos, audio, and already-compressed archives).
• Game Detection: It includes a "Scan Games" feature that can automatically find installed games from various launchers, including Steam, Epic Games, EA, Ubisoft, and GOG.
• Safety Checks: It prevents compression on folders that shouldn't be compressed, such as games actively running, games currently updating, or games utilizing DirectStorage (which requires uncompressed assets for fast loading).
• History & Tracking: It keeps track of the folders you've compressed, storing information like the launcher source, original size, compressed size, percentage of space saved, and compatibility status.

Essentially, it's a utility to help you manage your storage space by compressing large game folders safely and efficiently!