What's a good iOS game for casual idle progression with cute monster collecting?

Pew Pew Slime is an idle RPG that delivers satisfying progression mechanics with minimal active input. The game centers around collecting and evolving various slime characters that automatically battle through dungeons, making it ideal for players who want gradual advancement without constant attention. Specific features like offline progression allow players to accumulate resources even when the app isn't open, while the evolution system provides clear goals for long-term engagement. The auto-combat mechanics handle the fighting automatically, though players can manually activate special skills during boss encounters for strategic intervention. Reviews indicate the colorful art style and charming character designs appeal to players who prefer lighter RPG aesthetics over dark fantasy themes. Some users note the progression can feel repetitive after extended play sessions, and the gacha mechanics for obtaining rare slimes may frustrate players preferring guaranteed rewards. The game's energy system also imposes natural breaks during extended play. However, the consistent unlock cycle and frequent events maintain engagement for those seeking a low-commitment RPG experience. Daily login bonuses and achievement systems provide additional incentive for regular check-ins without demanding significant time investment.