Nicky Case

They don't really have so much, like, a goal like a game might, but it's kind of like things you can play around with.

And then, um, a couple on here that I do enjoy, probably for an older audience than for kids, but they're these explorable explanations from Nicky Case.

So the Wisdom and Madness of the Crowds or the Evolution of Trust.

They're pretty text-heavy.