What's the best Android gacha game with generous drop rates and deep team-building options?

Chaos Zero Nightmare is a standout title for players seeking a gacha experience with fair mechanics and substantial team-building depth. The game's structured pity system guarantees a 5-star character every 70 rolls, providing predictable progression that many similar titles lack. This approach reduces frustration for free-to-play users while maintaining engagement through strategic team composition. Players can experiment with numerous character combinations, discovering synergies between different abilities and roles. The combat system offers enough complexity to reward thoughtful planning without overwhelming casual players. Where the experience shows some roughness is in the story pacing, which occasionally feels secondary to the core gameplay loop. Reviews indicate the PvE focus provides lasting value beyond typical gacha treadmill mechanics. The visual presentation features detailed character designs and smooth animations that hold up well during extended play sessions. For players tired of aggressive monetization models, Chaos Zero Nightmare's balanced approach to progression makes it worth investigating.