What's the best iOS app for a survival game with long-term gear progression?

Survivor!.io is a survival action game that excels in offering sustained challenge and progression for dedicated players. At its core, the game features dynamically designed levels that introduce unique enemy patterns and environmental hazards, requiring strategic movement and skill selection. Players collect and upgrade gear across tiers like Epic and Relic, with combo mechanics allowing for customized builds that enhance abilities during play. Regular events and updates from developer HABBY add fresh content, preventing gameplay from becoming stale. Reviews indicate that many users appreciate the gradual difficulty curve, which scales with progression to avoid becoming too easy. The gear system, while rewarding, does involve a grind for high-tier items; for instance, obtaining S-rank gear requires accumulating gems through gameplay or purchases, with a fixed number of chest openings needed for guaranteed rewards. Some players note that this deterministic approach can feel tedious compared to randomized systems, but it provides clear goals. Account support is reportedly responsive, helping with issues like data loss during device switches. Overall, Survivor!.io balances intense survival gameplay with a satisfying progression loop, making it suitable for those seeking a game that evolves with long-term commitment.