: The GOG version is famously DRM-free. This is crucial for KSP because it allows you to copy your entire game folder to a different directory or an external drive. You can have multiple "installs" of the game running different massive mod lists without Steam ever trying to "update" or break your configuration. The Modding Golden Age
: For GOG.com users, this version represents the final DRM-free installer, ensuring long-term compatibility without the launcher issues sometimes reported by Steam users. Version history - Kerbal Space Program Wiki kerbal space program v1124gog best