This project can detect what are running it on Scratch https://scratch.mit.edu/projects/416155694/ TurboWarp https://turbowarp.github.io/#416155694 Forkphorus https://forkphorus.github.io/#416155694 Sulfurous https://sulfurous.aau.at/#416155694 Leopard https://leopardjs.now.sh/?id=416155694 Note: I wasn't able to test this project on Sulfurous, as the website wasn't working at the moment of making this project.