Idle Loops
The shared appeal: Incremental progression rewards planning how actions fit together.
The difference: The sequence and repeated route are the central puzzle. Check the fork you are playing before moving saves or following a guide.
Theory of Magic (Arcanum) balanced, never really ends. These games share the most with it, and each one says why.
If Arcanum's appeal is building a character through several systems, compare what you want to manage next: a route, a set of skills, or an entire settlement economy.
The shared appeal: Incremental progression rewards planning how actions fit together.
The difference: The sequence and repeated route are the central puzzle. Check the fork you are playing before moving saves or following a guide.
The shared appeal: Recognizable skills and RPG goals offer a structured long-term project.
The difference: It is a separate commercial game with its own base edition and expansions. The appeal is skill training, not following Arcanum's exact magical class paths.
The shared appeal: Several resource and development decisions compete for your attention over time.
The difference: You manage an economy rather than a magical character. That shift makes it a useful alternative only if allocation itself is the part you enjoy.
These researched comparisons are separate from the automatically matched list below. Featured placements do not affect similarity order.

Also rpg, deep
Joke-dense RPG idler with dozens of interlocking systems. Beating a boss is the easy part; allocating energy is the game.

Also rpg, magic · Same active/idle balance (balanced)
Demo of an incremental RPG about climbing a monster-filled tower, with crafting, growing equipment, enchant cards, quests, and automatic combat.

Also rpg, deep · Same active/idle balance (balanced)
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.

Also text, rpg, magic
A tiny text idler where you rise from mortal to immortal by choosing skills, pets and loot, with alchemy and beast taming side systems. Chinese-language store text.

Also rpg, magic · Same active/idle balance (balanced)
A wizard trains stats, casts spells and raises a pet minion, with fishing, gem crafting, dungeons and reincarnation mixed into one long grind.

Also rpg, deep
An idle MMO with a whole account of characters working different skills at once. Massive, sprawling, social.

Also 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.

Also rpg, deep
Six heroes battle automatically across a fantasy world while you upgrade nearly everything and juggle many prestige systems, with over 1,000 hours of content.

Also rpg · Same active/idle balance (balanced)
A runner-platformer bolted onto an idle economy. Jump for coins when you're around; let it grind when you're not.

Also deep · Same active/idle balance (balanced)
Pick a faction, build a kingdom, abdicate, reincarnate, ascend. Every run changes which of eleven factions is optimal.

Also text, rpg
A minimal text cultivation game: create a character and it fights, loots, and trains on its own from its first steps toward ascension and rebirth.

Also rpg
Click monsters, hire heroes, ascend, transcend. The game that made idle RPGs mainstream on Steam.

Also rpg, magic
Play the healer of a hopeless party, keeping them alive with spells and a 200-node skill tree until they can face the Demon King in about four hours.

Also rpg · Same active/idle balance (balanced)
A fan-made clicker that walks every region, with breeding, dungeons and an enormous collection to fill.

Also rpg, magic
Fight monsters, gather materials and cook, then craft three tiers of gear across two worlds. Built to run in the background while you check in for quick upgrades.

Also rpg, text
A mostly text-based RPG idler set in Greek mythology. Build a party of up to two heroes and four gods and fight to defend Olympus.

Also deep · Same active/idle balance (balanced)
Run a civilisation of kittens from catnip fields to space elevators. Deep, slow, and endlessly spreadsheetable.
Also deep · Same active/idle balance (balanced)
Breed an army of trimps, push through zones, portal back, and optimise your heirlooms for another hundred runs.

Also rpg · Same active/idle balance (balanced)
Tap titans, recruit heroes, prestige. The mobile heir to the Clicker Heroes formula.

Also magic, text
A combat-free cultivation sim: raise stats through alchemy, planting and other arts, climbing realms from qi refining to divinity.

Also deep
Five prestige layers stacked like a tower, each one reshaping the ones below. For people who liked AD and want more.

Also deep
A cyberpunk incremental where you write real JavaScript to hack servers and automate everything.

Also rpg · Same active/idle balance (balanced)
A voxel fantasy clicker where you fight monsters yourself or let guild companions do it, then craft and refine gear to push through stages and bosses.

Also rpg, magic
A short idle RPG where a reborn dark lord picks branching paths across lives, with shadow servants to automate and several endings.