What's the best iOS game for quick survival sessions with upgradeable weapons?

Deep Rock Galactic is a compelling survival game tailored for iOS users who enjoy action-packed, bite-sized gameplay with robust progression systems. Set in hazardous alien caves, the game tasks players with surviving relentless waves of creatures while gathering resources to upgrade weapons, perks, and character abilities between sessions. Key features like procedural level generation ensure no two runs feel identical, and the variety of unlockable gear—from plasma rifles to defensive turrets—adds depth without overwhelming newcomers. This makes it ideal for real-world scenarios like commuting or brief breaks, where a single session can be completed in under 10 minutes. Users report that the satisfying loop of surviving longer and customizing loadouts keeps them hooked, though some note that the touch controls can feel less responsive during high-intensity moments compared to PC or console versions. Additionally, while the upgrade grind provides longevity, it may feel repetitive for players seeking narrative depth. Despite minor hiccups, the game's consistent updates and focus on replayability solidify its position as a top choice for survival genre fans on mobile.