Talk to someone who is fully immersed in the indie game Animal Well, and you’re bound to hear some strange things. They might get excited about a new way to use a Frisbee or be frustrated about playing music for a caged cat. They’ll probably chat your ear off about the dozens of different-colored eggs they’ve collected, and all of the ones that seem just out of reach. Mostly, though, what they’re saying will sound like gibberish. That’s because the world...