This RPG subgenre is built on a simple idea: your heroes fight, farm, and level up even when you're not watching. You open the game, claim everything they've gathered, and decide what to do next. What's interesting is how many different types of Idle RPGs fit under that same umbrella: classic-style dungeon crawlers, gacha games with hundreds of characters, kingdom simulators, or AFK variants with PvP mechanics. Games for when you have five minutes... and for when you don't have any at all.