Riichi City × OVERLORD

Riichi City × OVERLORD is a competitive Japanese mahjong game that blends deep riichi strategy with the iconic OVERLORD universe. Master tile efficiency, defense, and yaku building in stylish anime visuals, then face players worldwide in ranked ladders or relax in casual tables. Play solo challenges, seasonal events, and collaboration story content featuring Nazarick characters, themed tables, and exclusive cosmetics. Whether you are new to riichi or a seasoned strategist, intuitive tutorials, smart hints, and detailed post-game analysis help you learn faster, refine reads, and climb the leaderboards.