In case somebody is wondering: The game was made with Scirra's "Construct 2", which is a great 2D game-maker. You can immediately try it (the current version 3) in the browser on https://www.construct.net/en/make-games/free-trial
I'm a hobbyist, and usually use Construct, Phaser or vanilla JS.
I have put the source-file on https://github.com/niorad/Ninio, you'll need Construct 2 or 3 to open it, though (paid version I think).
Tom, please allow me to say thanks for your work! As front-end-dev, I'm stunned by having C3 in the browser. I would highly enjoy reading about its software-architecture and approaches one day, especially since it's not based on any of the big front-end-frameworks.
