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Online Browser Idle Games List

G123 is a free home for anime idle games you can play online free in your browser—no download or registration. Enjoy idle-style rpg progression that keeps going while you’re away, on PC or mobile. Play with no ads.

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I've Been Killing Slimes for 300 Years and Maxed Out My Level: Witchcraft

The unchanging everyday life is my treasure.

Demon Lord, Retry! R Reborn

Take back the Demon Lord's power! Weapon Collectible RPG!

Miss Kobayashi's Dragon Maid Fantasia

♡♡ An RPG to nurture love with Miss Kobayashi ♡♡

The Ossan Newbie Adventurer, Trained to Death by the Most Powerful Party, Became Invincible. Orichalcum Soul

It doesn't matter how old you are when you start something new!

Reincarnated as a Sword Brave Rush

A Roguelike RPG with a Fluffy-Eared Girl and a Doting Sword

So I'm a Spider, So What? Ruler of the Labyrinth

The labyrinth survival fantasy tale begins!

My Status as an Assassin Obviously Exceeds the Hero's Shadow Break

Exiled from the kingdom, the strongest assassin adventures in another world!

Arifureta: From Commonplace to World's Strongest - Rebellion Soul

This Synergist... is the world's strongest.

High School D×D Operation Paradise Infinity

A Harem Game For Gentlemen

Negima! Magister Negi Magi - Mahora Panic

True magic results from courage of the heart.

Dropkick on My Devil!! Chaos

Jashin-chan's battles are just getting started!!!

Magical Circle Guru-Guru: Stardust Adventure

Let's meet up, just like those old times…

TSUKIMICHI -Moonlit Fantasy-: Peace Chronicles

Journey to a peaceful world

Peter Grill and the Philosopher's Time - Defender of Virtue 2

The Strongest Man is Fighting for His Virtue?!

Seirei Gensouki: Spirit Chronicles Another Tale

New encounters await you in another world in this fantasy RPG!

Hyakka Ryoran Samurai Girls: Passion World

Fierce Samurai Girls Await!

WIXOSS Multiverse

WIXOSS all-stars, unite!