A vanilla JS attempt at remaking the puzzles from The Witness.
Live version: https://hallofthemountaink.ing/
The mobile experience is currently bad, and has issues. i would suggest playing on a laptop/desktop if you can.
If you have any questions, they may already be answered here: https://www.reddit.com/r/TheWitness/comments/1chtqah/a_vanilla_js_implementation_of_the_witness_puzzles/