Eventually, the original standalone Crocodile Physics and Crocodile Technology software were discontinued. They were effectively retired in favor of the newer, shinier Yenka suite. For a modern operating system, the old Crocodile software is technically obsolete. It was built for Windows XP, or perhaps Windows 98.

If you need Crocodile Clips-like functionality without legal or security risks, consider these free, browser-based simulators: