Games like Idle Monster TD: Evolved
Idle Monster TD: Evolved leans idle, never really ends. These games share the most with it, and each one says why.

Endless Frontier - RPGUpdated
Also fantasy, collection · Same active/idle balance (leans idle)
Lead a squad of knights and mages up thousands of stages against titans and dragons, with units that keep climbing and leveling on their own while you are away.
75% idle
Idle Big Devil
Also collection, fantasy · Same active/idle balance (leans idle)
Summon and upgrade heroes from five factions, equip artifacts, and push a campaign and an infinite tower in a 3D idle RPG.
82% steam70% idle
The Girl's Moving Castle
Also collection, fantasy · Same active/idle balance (leans idle)
A fantasy idle RPG where you gather and raise companions for turn-based battles, with AFK growth and daily reward collection taking a few minutes a day.
86% steam70% idle
挂姬恶魔 IDLE DEVILS
Also collection, fantasy · Same active/idle balance (leans idle)
Raise a chosen demon, recruit more of them, and gear up a team to seal the seven hells and claim the throne.
81% steamhas ending70% idle
Book of Yog Idle RPG
Also collection, fantasy · Same active/idle balance (leans idle)
Recruit heroes, mix skill tomes and loot, and push a cel-shaded idle ARPG campaign that keeps progressing while you are offline.
64% steam70% idle
Summoners Greed: AFK TD TowerUpdated
Also tower defense, collection · Same active/idle balance (leans idle)
Summon heroes, place them on a grid to hold off waves, and collect rewards that build up while the game is closed.
75% idle
Idle Kingdom DefenseDormant
Also tower defense, fantasy · Same active/idle balance (leans idle)
Command heroes and archer corps in large castle-defense battles, with rewards stacking up while the game is closed.
75% idle
Trials of Heroes: Idle RPGUpdated
Also fantasy, collection · Same active/idle balance (leans idle)
Summon a hero squad that auto-battles through dungeons and towers, gathering resources for you even when you are offline.
75% idle
Summoners Era: Idle RPG HeroesUpdated
Also collection, fantasy · Same active/idle balance (leans idle)
Summon heroes who train and level while you are AFK, then take them through campaigns, towers, arena and guild wars.
75% idle
Epic Summoners: Monsters WarUpdated
Also collection, fantasy · Same active/idle balance (leans idle)
Summon heroes who auto-battle up the Magic Ladder, collecting combat rewards even while you are offline.
75% idle
Darkest AFK: Offline RPG GamesUpdated
Also fantasy, collection · Same active/idle balance (leans idle)
Summon and gear up knights, archers and mages for dark fantasy auto battles through cursed lands and dungeons, with progress continuing offline.
75% idle
AFK God of DestructionUpdated
Also fantasy, collection · Same active/idle balance (leans idle)
Command shadow forces in a dark fantasy isekai, collecting artifacts and conquering dungeons while your shadows grow in your absence.
75% idle
Idle Hero TD - Tower Defense RPGUpdated
Also tower defense · Same active/idle balance (leans idle)
An endless tower defense where you recruit and place fantasy heroes against infinite waves, and they keep fighting and collecting rewards while the game is closed.
82% steam75% idle
洪荒:我挂机成圣
Also collection, fantasy · Same active/idle balance (leans idle)
A Chinese text-based online idle game drawn from myth, where you train hundreds of legendary characters, reroll gear stats and trade items with other players.
49% steam70% idle
Heroes of Havoc: Idle Adventures
Also fantasy, collection
Send a party of collected heroes into 3D fantasy battles, then upgrade and equip them between missions or let them fight on their own.
43% steam50% idle
Idle Monster TD
Also tower defense · Same active/idle balance (leans idle)
Place elemental monsters on the map to hold off endless robot waves, combining their abilities and upgrading stats between fights.
72% steam70% idle
The Perfect Tower II
Also tower defense
Tower defence as an idle engine, plus factories, mining and an in-game scripting language.
87% steam60% idle
Tiny Aquarium: Social Fishkeeping
Also collection · Same active/idle balance (leans idle)
Raise and breed fish in a small tank that can sit on your desktop, keep growing while you are offline, and be shared with friends for visits and trades.
97% steam75% idle
Slayer LegendUpdated
Also fantasy · Same active/idle balance (leans idle)
Raise a pixel-art demon slayer through AFK combat, leveling gear and combining elemental skills in a retro fantasy world.
75% idle
MyVoiceZoo
Also collection · Same active/idle balance (leans idle)
Record your own voice as animal calls, and each cry in your zoo earns income to adopt more animals, with little need for active play.
92% steam75% idle
Multiverse Loot Hunter
Also collection, fantasy
Hop between cultivation, history, martial arts and sci-fi worlds, recruiting fighters and farming treasure to build up your team.
85% steam
Idle Champions of the Forgotten Realms
Also collection
Dungeons & Dragons formation-building idler. Heavy on events and collection.
77% steam60% idle
Wizard's Wheel 2
Also fantasy, collection
A retro idle RPG where you recruit from 80+ heroes, loot randomized gear and build temple statues, either speeding time actively or letting fights run.
70% steam50% idle
Garden Galaxy
Also collection · Same active/idle balance (leans idle)
Spend coins on random item drops and arrange them into your own garden, filling themed sets as visitors bring money in the background.
98% steam70% idle