Because it's popped up enough times in other threads, I figured that it was about time that this game got its own thread.
The recently released Glittermitten Grove seems well on its way to becoming a sleeper hit. It's a kind of city-building game? Sort of dwarf-fortress-lite? Or Terraria with a community of fairies? Maybe someone else can describe it better.
It has some hidden depth to it, so I don't want to get too detailed with strategy guides in the opening post.