Reminds me of playing Prof. Robert West's implementation called "Wikispeedia" back in High School after AP CS Exams (and trying to call out anyone using the Find feature of their browser!) It's still playable here: http://www.wikispeedia.net/ which redirects here: https://dlab.epfl.ch/wikispeedia/play/ but originally hosted here: https://www.cs.mcgill.ca/~rwest/wikispeedia/project.php. But its great to see folks are iterating on this concept further with a different UI and more features.