GCompris has always been entirely free on Linux distributions. You can find it in the Snap Store or on Flathub . How to Get the Full Version for Free
Between 2015 and 2023, the activation system allowed the project to hire a full-time developer (Timothée Giet) and release major updates including new activities like “Computer Discovery” and “Reading and Spelling” in multiple languages.
Ask yourself: Is $5 worth the hours of searching for malware-infested "codes"? Is $5 too much to pay for 190 educational games that will teach your child to read?