Games like Paper War
Paper War. These games share the most with it, and each one says why.

Auto Battles Online: Idle RPGUpdated
Also idle, auto battler, rpg
Gear a team of heroes from thousands of items, place them on the field, and let them fight other players' teams automatically.

Dunidle: Auto Battler RPG GameDormant
Also idle, auto battler, rpg
Lead an 8-bit hero party through dungeons and bosses, gearing them up while they battle on their own.

Idle Horizons: Dawn of HeroesUpdated
Also auto battler, rpg, idle
Draft heroes, tune deep skill trees and positioning, and run dungeons and raids in an auto-battler built for theorycrafters.

Legend of Slime: Idle RPGUpdated
Also idle, rpg, auto battler
Lead a clan of slimes through automatic battles, evolving heroes and gathering loot even while offline.
75% idle
壶中日月 Timeless Teapot
Also rpg, auto battler, idle
Lead a cultivation sect inside a magic teapot, recruiting disciples who train, fight and break through realms automatically while you tune gear and formations.
77% steam
Bard Idle
Also auto battler, rpg, 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
Legends of Dragaea: Idle DungeonsUpdated
Also rpg, auto battler
A first-person idle dungeon crawler where parties from nine races explore dungeons, take on 9-hero raids and grow your own guild and town.
86% steam
Idle Hero TD - Tower Defense RPGUpdated
Also rpg, auto battler
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
Loot LoopUpdated
Also rpg, auto battler
Send a party of tiny heroes into dungeon runs that last seconds, then spend the loot on a large skill tree between attempts.
92% steam
SkelesellerUpdated
Also rpg, auto battler
A dead adventurer returns as a skeleton shopkeeper who hires heroes, sends them into battle and sells their loot to grow the town. Finite, with small numbers and no prestige.
91% steamhas ending
AFK ArenaUpdated
Also rpg, idle
A hero-collecting idle RPG with a campaign, a beast system and co-op modes.

AFK God of DestructionUpdated
Also idle, rpg
Command shadow forces in a dark fantasy isekai, collecting artifacts and conquering dungeons while your shadows grow in your absence.
75% idle
AFK Heroes: Fantasy Idle RPGDormant
Also idle, rpg
Summon heroes, set lineups and let them fight while you are away, needing only minutes a day.
75% idle
Alien Invasion: RPG Idle SpaceUpdated
Also rpg, idle
Guide an alien that eats humans to grow stronger, evolve its abilities and beat bosses in new locations.

Almost a Hero - Idle AdventureUpdated
Also idle, rpg
Lead a team of hopeless heroes through dungeons, prestiging for permanent artifacts while they fight while away.
75% idle
Arkcraft - Idle AdventureUpdated
Also idle, rpg
Grow a castaway raft into a huge floating ark, adding rooms, docks, and defenses while the crew keeps gathering and processing materials while you are away.
75% idle
Battle Simulator: Idle WarfareUpdated
Also auto battler, idle
Recruit fighters from many eras, from Spartans to helicopters, and watch them clash in automatic battles.

Blade IdleUpdated
Also idle, rpg
Turn a herb collector into a sword hero, clearing stages and dungeons and merging gear to power up.

Bounty Bash: Idle Pirate RPGUpdated
Also idle, rpg
Summon a pirate crew that auto-battles at sea around the clock, growing stronger while you are away.
75% idle
Castle Cats - Idle Hero RPGUpdated
Also idle, rpg
Collect over 150 heroic cats and send them on quests against an evil pug wizard, returning to gather rewards and evolve your roster.
75% idle
Cat Hero : Idle RPGUpdated
Also idle, rpg
A cat defends its sleeping owner's dreams, tapping to merge fish into stronger fish-missile ammo.

Clicker Heroes - Idle SlayerUpdated
Also idle, rpg
Tap to fight waves of monsters and recruit a team of heroes with their own abilities, in the mobile version of a long-running idle RPG.

CookieRun: Crumble - Idle RPGUpdated
Also idle, rpg
Field a squad of up to 12 Cookies that auto-battle nonstop, gathering upgrade resources while you are offline.
75% idle
Crush Them All - Idle RPGUpdated
Also idle, rpg
Collect heroes and crush bosses across more than 1000 stages, ascending to new worlds and progressing while away.
75% idle