The person who made the music for terraria is Scott Lloyd Shelly, making almost all of the OST for it, and it's also a banger. He's also created music for a bunch classic computer games. He's also a Tv and game composer. "Overworld Day" Was the very first piece of music Scott wrote for Terraria was the "Overworld Day" theme. Also, Scott notes that Andrew Spinks is one of his favorite developers to work with because, after the first track, he was given "free rein" to create the music.