Questions

No. All three are free to play, and there is nothing to buy once you are inside one — no currencies, no unlockable characters, no boosts and no subscription.

The studio behind them is a company, and this site may carry advertising. Where it does, the cookies involved are described in the プライバシーポリシー. Nothing about that changes what a game costs to play, which is nothing.

No, and there is not one to make. No game here asks for an email address, a password or a sign-in of any kind.

Your progress lives on your device, which is why there is nothing to log in to and nothing to lose the password for.

No. Open the URL and the game is running. There is no app, no store listing, no plug-in and no download step.

You can add any of them to a phone home screen if you want a launcher icon, but that is your browser doing it, not us asking you to.

In your own browser, on the device you played on, using local storage. We do not keep a copy.

That means a record set on your phone is not on your laptop, and clearing your browser’s site data will erase it with no way back. A private or incognito window generally forgets everything when it closes. Getting started goes into this in more detail.

No. The only score you are compared against is your own previous best, which is the version of competition that does not require us to hold data about you.

If you want to compete with someone else, Break Works and Block Pong can both hand over a link that replays your run, so the other person watches it happen rather than trusting a number.

Any current version of Chrome, Safari, Firefox or Edge, on phones, tablets and computers alike.

The one real requirement is WebGL for Break Works, which is 3D. If hardware acceleration is switched off in your browser settings, that game will struggle where the other two will not.

Not reliably. The first load needs a connection, and while your browser will cache a good deal of it afterwards, none of the games is built as an offline app.

There is nothing more violent than a wrecking ball knocking over a stack of crates, no chat, no user-generated content and no way for a stranger to contact anybody.

What we would rather not do is claim a formal age rating we have not obtained. Parents who want to check first will find the games take under a minute to see in full.

The specifics — cookies, analytics, what is kept and for how long — are set out in the プライバシーポリシー, which is the authoritative document and is written in Japanese.

The short version is that gameplay data such as your best distance stays on your device, and the site itself uses the ordinary analytics and cookie machinery described there.

So that any one of them can be rebuilt, moved or taken offline for an afternoon without disturbing the others. This site is the front door; the games are separate houses.

Two of them live on game5.app, which is where the studio published before this site existed. Same people, same games, older address.

That is the intention, and it is cheap to honour: a browser game with no servers to run and no accounts to maintain does not cost much to leave standing. Block Pong has been up for years already.

If something ever does have to go, the plan is to say so here rather than to let a link quietly stop working.

Yes, freely, including monetised video. You do not need permission and you do not need to ask.

If you want art, a description or anything else to go with it, Support has the address to ask at.

Support — it lists the handful of details that make a bug reproducible, which is the difference between a report we can act on and one we cannot.

Electric Sheep, Inc., a small company in Tokyo. About the studio covers how the games get made; the formal operator details are on 運営者情報.