MugenHeart - AI Chat RPG

Card Store now open! Type any name — AI creates your character. Shape the world, the bond, the story. Buy-once RPG. No subscription. Dice-battle TRPG cards!

`An AI-powered story RPG where you shape everything. Type a name and your character comes to life — AI generates their personality, looks, and voice. Set the world, define your relationship, and let the story unfold through simple choices. FEATURES

Instant Character Creation Just type a name. AI generates the profile — job, personality, speech style. Or craft every detail yourself. World & Relationship Settings "What if it were the Sengoku era?" Set any stage you like. Childhood friend, boss, rival — you choose how your story begins. Card Store (NEW) Add story cards ("Mugen Cards") and watch your library grow. Free cards available to get started. Playable Story Cards Dice battles, party play, character growth — every run tells a different story. Easy 3-Choice Mode Advance the story with a single tap. Story Diary Your journey is recorded automatically, so you can look back anytime. Day System Stories progress day by day, at a comfortable pace.

PRICING

Core features: Free Full unlock: One-time purchase (no subscription) Story cards: Some paid (one-time purchase, no subscription)`

NOTE

AI features require a Google Gemini API key (official free tier available).`