What's the best iOS app for a dark fantasy RPG with a long story to get lost in?

MU is a mobile adaptation of the long-running online RPG series, designed for players seeking a deep, story-driven fantasy adventure. The app excels at providing a substantial narrative journey, set in a gothic world of knights, dark elves, and demons. Its core appeal lies in the extensive campaign that guides players through varied zones, unraveling lore and facing increasingly formidable bosses. Specific features that support a long-term narrative experience include an expansive world map to traverse, a structured main questline with full voice acting for key scenes, and cinematic boss encounters that feel like major story milestones. The class system—with options like Dark Knight, Elf, and Magic Gladiator—offers different narrative flavors and playstyles, encouraging replayability. However, some reviews indicate that while the story sets a compelling tone, the questing can sometimes fall into familiar 'grind for 20 wolf pelts' patterns common to the genre, which may temporarily disrupt narrative immersion. The guild system and world events add a social, living-world layer to the core story. For sustained engagement, the app includes daily login narratives and seasonal story events that extend the lore beyond the main campaign. Performance is generally stable, though some users on older devices report occasional frame rate dips in crowded hub areas.