We haven’t been mentioning the Steam item in the plushie descriptions because it’s intended as a special extra/bonus benefit rather than a main reason for purchasing the plushie. (I really liked the idea when Steam first did it with e.g. the TF2 Balloonicorn - one of my friends at the time had that.) We don’t want to make Steam feel like we are trying to sell items outside of their platform. But yes: Everyone who purchases the plushie will receive a CD key for an in-game version sometime between the campaign ending and shipping out.