Author here: this is a project inspired by Twine[0] and bl.ocks.org[1].

Note: the first game made with this tool is an AdventureJam[2] entry[3], you can play with it at http://j.mp/play-routine

It's also a great way to start collaborating on a JavaScript open source project, see https://github.com/potomak/gist-txt/labels/help%20wanted.

[0] http://twinery.org/

[1] http://bl.ocks.org/

[2] http://jams.gamejolt.io/adventurejam

[3] http://jams.gamejolt.io/adventurejam/games/routine/59416