Offline progress
Close the tab and come back later: your heroes keep fighting on the server and earning yen and experience. You can bank up to 12 hours of offline earnings, and VIP stretches that to 72 hours.
Idle card battler with heroes
One PunchIdle
Build your team, let the fight roll and wait for Saitama to show up late. He ends it with one punch.
- Play in your browser, on PC and mobile
- 100% free to play
- Nothing to download
Now in open testing: the game is still in development and progress may be reset before the official launch. Questions? Our official Discord is bilingual (check the GLOBAL channels).
- Auto battles
- 39 heroes
- Offline progress
- PvP Arena
- Player Market
The game
Your heroes fight. You just call the shots.
One Punch Idle is an idle card battler inspired by One Punch Man. You build a team of Hero Association heroes, the fights play out on their own and every city you clear brings new rewards. When things get tough, strategy decides: your team order, skills and the combos between heroes.
And then there is Saitama. He waits in the Reserve, steps in at the right moment and ends everything with one punch.
- Auto battles. Your heroes fight while you watch or get on with your life.
- Recruit heroes. Cards from C to SSS, with card reveals.
- Build your Team. Order your Team to chain skills.
- Evolve. Stars, card fusion and skill mastery.
- Progress offline. The game keeps earning even when closed.
Highlights
Everything a hero fight needs
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Fights with special moves
Every hero has a signature skill with its own manga-style scene. You can speed up the fight whenever you want.
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Your Team is the strategy
Whoever is at the front of the Team takes the hits, then moves to the back. Drag your heroes, pick each one's skill and build your own chain.
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39 heroes, 9 factions, all on equal footing
No hero is "the best". Power comes from the card and the combos: the more heroes of the same faction in your Team, the bigger the HP and ATK bonus. A legendary hero is still on the way. Strategy rules.
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Recruit with a reveal
Open cards in a show of light and suspense. The rank (C, B, A, S, SS or SSS) is rolled on each card, and there is a Saitama-only banner with a pity guarantee through contracts.
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Evolve your way
Rank up with 3-to-1 fusion, earn stars, train skill mastery and send your heroes to the Dojo.
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PvP Arena and Tournament
Face other players' teams, climb the leagues (from C-Class to Top 10) and enter the weekly tournament. Any fight can be rewatched as a replay.
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Guilds and bosses
Join a Guild, share treasure and bonuses, take down daily and weekly bosses, battle other Guilds in war and chat with everyone.
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Player Market
Trade cards directly with other players for Diamonds, with no fee: sellers keep 100%. Anyone can buy; listing cards is a VIP perk.
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Battle Pass and missions
Daily and weekly missions, daily login, Saitama's Routine (100 push-ups, 100 sit-ups, 100 squats and a 10 km run) and a 14-day pass with a free track.
The hero for fun
Saitama shows up late. And fixes it.
He does not take a Team slot. He waits in the Reserve and steps to the front after 2 knockouts or on turn 4, whichever comes first. Normal Punch instantly defeats any enemy that is not a boss. Serious Punch finishes off a boss that is already hurt.
Train his skills so he arrives earlier and stronger. He also joins PvP, under fair rules.
While he waits, he talks. Hundreds of lines in manga speech bubbles:
- Egg sale until 6 PM. Be right back, okay?
- Left the stove on. Back soon. Or not.
- Cabbage is on sale. Can't wait.
The cast
39 heroes, and a legendary one on the way
Every hero has a role and a faction. All share the same base power: combos decide. The next one is on the way, and for now shows up only as a silhouette.
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Saitama
Fighter
Saitama's Group
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Genos
Assassin
Saitama's Group
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King
Support
Saitama's Group
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Mumen Rider
Support
Saitama's Group
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Bang
Fighter
Saitama's Group
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Fubuki
Support
Blizzard Group
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Mountain Ape
Tank
Blizzard Group
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Eyelashes
Fighter
Blizzard Group
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Lily
Assassin
Blizzard Group
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Atomic Samurai
Assassin
Sword School
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Iaian
Assassin
Sword School
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Okamaitachi
Assassin
Sword School
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Bushidrill
Fighter
Sword School
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Zombieman
Tank
The Indestructibles
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Puri-Puri Prisoner
Tank
The Indestructibles
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Pig God
Tank
The Indestructibles
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Superalloy Darkshine
Tank
The Indestructibles
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Watchdog Man
Fighter
The Indestructibles
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Tatsumaki
Assassin
S-Class Legends
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Metal Bat
Fighter
S-Class Legends
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Flashy Flash
Assassin
S-Class Legends
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Stinger
Fighter
A-Class Frontline
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Lightning Max
Assassin
A-Class Frontline
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Snek
Fighter
A-Class Frontline
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Amai Mask
Fighter
A-Class Frontline
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Captain Mizuki
Fighter
A-Class Frontline
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Glasses
Support
A-Class Frontline
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Child Emperor
Support
Science and Technology
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Drive Knight
Fighter
Science and Technology
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Metal Knight
Assassin
Science and Technology
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Tanktop Master
Tank
Tanktop Brotherhood
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Tanktop Black Hole
Tank
Tanktop Brotherhood
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Tanktop Tiger
Fighter
Tanktop Brotherhood
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Tanktop Vegetarian
Support
Tanktop Brotherhood
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Death Gatling
Assassin
Gatling Squad
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Golden Ball
Assassin
Gatling Squad
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Heavy Tank Fundoshi
Tank
Gatling Squad
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Smile Man
Fighter
Gatling Squad
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Spring Mustachio
Fighter
Gatling Squad
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???
Coming soon
Arriving in the game
Where to play
On PC and mobile, nothing to install
Open the game in your browser and start. The same account works on any device. On mobile, turn your phone sideways for the best experience, and you can add the game to your home screen like an app.
- No download, no app store.
- Modern browsers: Chrome, Edge, Firefox, Safari and Brave.
- Your progress lives in your account, not on your device.
No rush
Your Team keeps going when you leave
VIP, the Association Pass
Optional: donors get VIP. Cards opened during VIP stay sellable forever, you can list cards on the Market, found a Guild, bank more offline hours and earn extra Training Capsules.
Get started
Three steps and you are fighting
Create your free account
Pick a hero name, enter your email and a password. It takes under a minute.
Recruit and build your Team
The tutorial walks you through your first recruits, your Team and your first fusion, and gives you a welcome gift.
Let them fight, come back later
Advance through the cities, evolve your heroes and collect your offline earnings when you return.
News
What just landed in the game
Latest
One Punch Idle in English, a tutorial that shows where to tap and a floating battle window
The game now speaks English, the tutorial lights up exactly where to tap, and you can watch the battle in a small window while using your PC.
- English version of the game, the website and the emails. On your first visit the game uses your device language; switch anytime in Settings or on the login screen.
- Tutorial that shows where to tap: the screen dims, the right button glows with Saitama's glove pointing at it, and the step only moves on when you tap the right spot.
- Floating battle window: on PC (Chrome and Edge), the button in the corner of the battle opens the fight in a small window that stays on top of everything.
- Global chat in English, separate from the Portuguese chat.
FAQ
Got questions?
Is it free?
Yes. You can play the whole game without spending anything. If you want to support the game, you can make a donation and donors get Diamonds or VIP, which speed up progress and unlock conveniences, like listing cards on the Market.
Do I need to download anything?
No. The game runs right in your browser, on a computer or a phone. If you like, you can add it to your home screen and open it like an app.
Does it work on mobile?
It does. The game is designed for landscape orientation, with big buttons for touch. The same login works on PC and mobile.
How do donations work?
Donating is optional. Donors get Diamonds or VIP as an in-game reward. The donation is processed by an outside provider, so One Punch Idle never stores your card number. Donations are for adults aged 18 and over only. Cards are never a donation reward: they come from Recruit or from the player Market.
Do all heroes have the same power?
Yes. Every hero starts from the same stat budget, and the class they have in the anime is just flavor. What changes a card's power is its rank (C to SSS), its stars, its mastery and, above all, the skill and faction combos in your Team.
What about my data?
We collect only what the game needs to work: username, email and password (stored only as a hash). We use a session cookie to keep you logged in and security logs, with the IP address stored masked or hashed. We use no advertising trackers and no third-party analytics. The details are in the Privacy Policy.
I need help. Who do I talk to?
Official support is by email at [email protected] (account, donations, reports and personal data). For questions about how to play, news and to meet the crowd, join our official Discord, which is bilingual (check the GLOBAL channels).
Time to call the Association.
Your Team is waiting for you. So is Saitama, only he is at the corner store.