Shin Megami Tensei: 20XX Devil's Colosseum

About

Shin Megami Tensei 20XX Devil’s Colosseum is a mobile RPG that blends classic turn-based combat with a dark, narrative-driven experience. You play as a boy navigating a twisted maze after his twin sister is possessed by a demon. The game focuses on tactical battles against monstrous foes, with an emphasis on party composition and skill management. Resourcefulness matters as you upgrade gear and manage limited inventory space while uncovering the mystery behind the corrupted orphanage. The game stands out for its atmospheric storytelling and deep strategic elements. Despite its mobile origins, it retains the series’ signature complexity with layered dialogue choices and moral ambiguity. Community discussions often highlight its underrated depth, with some sources noting a cult following among fans of the Shin Megami Tensei series. Released over 15 years ago, it remains a niche entry that challenges the idea of what mobile RPGs can offer.

Storyline

Two twins (a boy and a girl) are left by their parents in an orphanage called "Silent Night". They grow, and at 14 years old, the girl is possessed by a demon and throws the orphanage into a dark maze, full of monsters. After receiving a COMP by a mysterious man in a wheelchair, the boy travels to rescue his sister and save the orphanage.