IdleOn

IdleOn is an idle MMO where your characters keep fighting and working while you're away. You play actively by buying upgrades, planning skill trees, tuning stats and beating bosses, then come back the next day to spend everything they earned while you were gone. Your account holds up to 11 characters, one for each class, from Divine Knight to Bubonic Conjuror, and each one fills a different role. The developer hints at secret class lines as well. Fighting is only part of it. There are 20 skills to level, including Farming, Sailing, Construction, Cooking, Woodcutting and Alchemy. Since each character does its own job for the shared account, a big part of the game is managing all of them together. IdleOn is free to play. You can reach every class, map, skill and boss without spending money, and there's no paid DLC. Optional purchases include boosts and pets. The developer, Lavaflame2, says it's made for players who want an idle game to play for years, and its Discord has more than 200,000 members. If you'd rather have something short, the same developer made Fortune Mill.