Shin・Megami Tensei

Shin Megami Tensei is a 1992 game for the Super Famicom by Atlus ported to the Sega Mega-CD by SIMS. The Mega CD version was only released in Japan.

A follow-up to the first two Megami Tensei games, Shin Megami Tensei is a first-person RPG set in modern-day and post-apocalyptic Tokyo. The hero of the game can summon demons, who consume a mysterious energy called Magnetite, which can be obtained from battles. The summoned demon joins the party and is then fully controllable by the player. The active party can include up to six characters: the hero, the heroine, and four slots usually reserved for the demons, though other human characters might also join. There is a wide variety of demons in the game, most of which are taken from real-world mythologies. The demons have levels, individual statistics, spells, special abilities, etc.