sˈoʊl ʌvðɪ ˈʌltᵻmət nˈeɪʃən ˈɔfən ɐbɹˈiːvɪˌeɪɾᵻd æz ˈɛs.jˈuː.ˈɛn.wʌzɐ fˈæntəsibˈeɪst mˈæsɪv mˌʌltɪplˈeɪɚɹ ˈɑːnlaɪn ɹˈoʊlplˈeɪɪŋ ɡˈeɪm ˌɛmˌɛmˈoʊˌɑːɹpˌiːdʒˈiː pɹədˈuːst baɪ wˈɛbzən, ɐ kɚɹˈiːənbˈeɪst kˈʌmpəni.
Soul of the Ultimate Nation (often abbreviated as S.U.N.) was a fantasy-based massive multiplayer online role-playing game (MMORPG) produced by Webzen, a Korean-based company.