I haven't tried playing it yet, but Mr Nom Nom looks adorable; one of those creative games that stirs my inner child. Etter studios shared some info about its development [1], and open sourced the code that procedurally generates the characters using threejs [2]

[1] http://etterstudio.com/en/mrnomnom.php

[2] https://github.com/etterstudio/mrnomnom/