Gah, save and load system is utter garbage. Why didn't dev use Ren'py?? There's nothing in this game that it couldn't do, and it would be 1000 times more reliable and accessible.
Edit: to be specific, nothing is clickable after loading in most cases. Sometimes I'll get lucky and one of the nav buttons will work and let me continue. Even when not loading, I often have to click several times on a speech bubble/gear or dialogue choice before it registers. Whatever engine this is (tyranobuilder?) does not provide a good end user experience, and I don't think it's the dev's fault (other than the initial choice).
There is a lot of content (and it's good!), but good luck figuring out correct dialogue choices.