The finished product was marketed as `` UFO : Enemy Unknown '' in North America and as `` X-COM : UFO Defense '' in Europe and Australia . The finished product was marketed in North America as '' UFO : Enemy Unknown `` and in Europe and Australia as '' X - COM : UFO Defense '' .
Produk siap dipasarkan sebagai "UFO: Enemy Unknown" di Amerika Utara dan sebagai "X-COM: UFO Defense" di Eropah dan Australia. Produk siap dipasarkan di Amerika Utara sebagai ''UFO: Enemy Unknown 'dan di Eropah dan Australia sebagai ''X- COM: UFO Defense''.