Games like IdleOn - Idle RPG
IdleOn - Idle RPG mostly idle. These games share the most with it, and each one says why.

Desktop Raid
Also rpg, classes, idle · Same active/idle balance (mostly idle)
A hero squad in a corner of your desktop fights, levels and loots automatically across a dozen branching classes while you work.
76% steam90% idle
Legends of IdleOn
Also rpg, skilling, deep · Same active/idle balance (mostly idle)
An idle MMO with a whole account of characters working different skills at once. Massive, sprawling, social.
77% steam80% idle
Bloobs Adventure Idle
Also skilling, rpg, deep
A RuneScape-style idle RPG with 24 linked skills, automated boss fights, soul collecting and skill prestige, plus banked offline time to spend later.
88% steam75% idle
Epic Stickman: RPG Idle WarUpdated
Also idle, rpg, classes
Guide a stickman hero through a shadowy realm, picking a class and gaining power in automatic fights even offline.
75% idle
Evitania Online - Idle RPG
Also rpg, classes, skilling
An online idle RPG with classes and talent trees where your character fights and gathers while offline, and alts can level mining and woodcutting.
78% steam75% idle
Between Adventures IDLE
Also rpg, skilling, idle
A pixel-art idle RPG where you watch your hero fight, then train 11 gathering and crafting skills, enchant gear and shape a skill tree. Progress continues offline.
68% steam75% idle
Vespera
Also rpg, classes, skilling
A class-based idle RPG with subclass talent trees, gathering and crafting, mercenary expeditions, and factions that fight world bosses with other players. Full offline progress.
63% steam75% idle
Dragon Cliff
Also rpg, classes, deep
A semi-idle party RPG built around deep itemization: 25 classes, talent trees, reforging, and battles that run on their own until you spend rage.
89% steam50% idle
Melvor Idle
Also rpg, skilling · Same active/idle balance (mostly idle)
RuneScape's skilling loop distilled into menus. Train twenty skills, fight dungeons, fill the completion log.
90% steam85% idle
Book of FeiDormant
Also rpg, classes · Same active/idle balance (mostly idle)
A desktop idle RPG where a party of cute warriors fights and works part-time jobs at the bottom of your screen, unlocking 24 advanced classes and card gear.
93% steam90% idle
Lootfiend: Idle DungeonsUpdated
Also idle, rpg, classes
A dark fantasy loot RPG where your hero fights on auto-mode, rerolling gear stats, mixing skills and runes, and recruiting sidekicks.

Cultivation Magic World
Also rpg, classes, idle
A 3D cultivation RPG with one-click AFK loot farming and manual aerial battles, climbing realms from mortal to transcendence with spirit beast companions.
78% steam
Immortal Titan-Blade of ChaosDormant
Also idle, rpg · Same active/idle balance (mostly idle)
A vertical idle MMORPG where your level and power rise automatically all day, even offline, with dungeons, bosses, and cosmetic gear.
90% idle
Idle War: Legendary HeroesUpdated
Also idle, rpg · Same active/idle balance (mostly idle)
Summon from over 100 heroes across six factions for Norse myth battles that run fully automatically, even offline.
90% idle
Bard Idle
Also rpg, classes, idle
Assemble a party of heroes with randomized race, class and weapon, then back them with ballads you compose and jelly dwarfs across arena and titan modes.
69% steam50% idle
Hero Tale
Also rpg, skilling · Same active/idle balance (mostly idle)
A background auto-battler: a hero fights across a fantasy island while you check in to spend points in a 300-node skill tree and swap loot.
71% steam90% idle
Legends of Wasteland
Also rpg, classes, idle
An idle RPG with six classes, a 1,700-node talent system and over 100 skills modified by gems. Auto-battle for rewards or take on bosses directly.
62% steam
TBH: Task Bar Hero
Also rpg, classes · Same active/idle balance (mostly idle)
A tiny hack-and-slash RPG that lives in your taskbar, where pixel heroes fight and loot on their own while you mix classes, skills and gear.
62% steam90% idle
Loot of Baal
Also rpg, classes · Same active/idle balance (mostly idle)
Send a crew of hirelings from five classes out to fight demons from a sidebar on your screen, crafting and trading loot to perfect the team.
62% steam90% idle
Idle ClansUpdated
Also skilling, rpg
A multiplayer idle RPG where you pick a task and your character trains around 20 skills even while you are offline, with a player economy and clans.
74% steam75% idle
Idle IktahUpdated
Also skilling, rpg
An idle skilling RPG set in the Pacific Northwest, with local wildlife, minigames, moon-phase item effects, a real tide tracker and offline progress.
76% steam75% idle
Scapewatch: Idle MMO
Also skilling, idle
Queue tasks across 30 skills, close the tab, and your character keeps gathering, fighting and training offline. Clans, raids and hiscores round out the grind.
86% steam75% idle
Invincible: Guarding the GlobeUpdated
Also rpg, idle
Recruit characters from Invincible, merge clones to rank them up, and run idle battles in the background.
75% idle
Legend of Slime: Idle RPGUpdated
Also idle, rpg
Lead a clan of slimes through automatic battles, evolving heroes and gathering loot even while offline.
75% idle