The Shin Megami Tensei RPG series began in Japan in 1992 on Super Famicom. Neither this game nor its sequel was published in North America. In 2004 Shin Megami Tensei III: Nocturne was the first SMT game in North America, although ?III? was removed from the PlayStation 2 title. The SMT series later spun-off several sub-series, including Persona, Devil Summoner, Devil Survivor, Digital Devil Saga, and the standalone Strange Journey. This new RPG is considered the fourth in the Shin Megami Tensei mainline series.