Privacy Policy

1. Overview

EchoPlayroom 운영팀 (the "team") runs EchoPlayroom (echoplayroom.com), a playground of free browser games and experiments. Most games can be played without signing in, and there is no membership sign-up.

We only take the information the service genuinely needs. Anything not listed below is not collected.

2. Information we collect

These are the values we actually receive and keep.

• Contact form: your name, email address, enquiry type, and message. For game production and advertising or partnership enquiries, we also collect your preferred timeline and budget range if you choose to provide them.
• Google sign-in (optional): your Google account identifier, email address, name, and profile picture URL. These are not stored in our database; they live only inside a signed sign-in cookie and disappear when you sign out.
• Game records: a nickname (typed by you or assigned automatically), scores and rankings, and play progress.
• Text you post: the author name and body of anything you write in a game or the showroom (comments, cheer messages, victory messages, and the like).
• Deletion passwords: so that work created without signing in (Stick Studio and similar) can be removed later, the password you choose is stored only as an irreversible hash. The password itself is never stored.
• Device identifier: a random string your browser creates on the first visit. It lets you keep your own records without signing in, and it is not linked to a name or email address.
• Recovery codes and public profile numbers: issued by some games so your progress can follow you to another device.
• Uploaded files: images and sounds that a signed-in player uploads to their personal library, along with the file name, type, and size.
• Abuse-prevention values: a few features turn the incoming IP address and browser string into an irreversible hash used for less than a minute. The original IP address and browser string are never stored.

3. Values that stay on your device

Nicknames, language and accessibility settings, and game saves are kept in your browser's local storage. They stay on your device and are never sent to our servers. Clearing site data in your browser removes them.

Deletion passwords are also remembered there so you do not have to type them again. On a shared computer, please clear the site data when you are done.

Some games ask for microphone or camera permission. The audio and video are processed on your device only and are never uploaded. You can refuse the permission at any time.

4. How we use it

• Saving game records and showing leaderboards
• Answering your enquiries and telling you the outcome
• Improving the service using visit statistics
• Preventing abuse such as falsified records or excessive requests

5. How long we keep it

• Contact enquiries (name, email, enquiry type, message, and any optional timeline and budget range): kept for one year after the enquiry is handled, then deleted.
• Game records, nicknames, comments, cheer messages: kept while the service runs, and deleted without delay when you ask.
• Sign-in cookie: expires after 30 days. The temporary sign-in cookie lasts 10 minutes.
• Language cookie: one year.
• Abuse-prevention hashes: gone within a minute.
• Uploaded files: kept until you delete them or ask us to.

6. Cookies and advertising

EchoPlayroom uses cookies to remember your language choice and your signed-in state.

We use Google Analytics 4 for visit statistics. It uses cookies to collect data such as referral source and time on page; we only ever look at aggregated statistics that do not identify individuals.

Google AdSense advertising may appear on this site. Third party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. You can opt out of personalised advertising in Google Ads Settings.

7. Processors and international transfer

We rely on the following providers to run the service. Information may therefore be stored on or sent to servers located outside your country (in the United States).

• Vercel Inc. (USA) — website hosting and server operation, for as long as the service runs.
• Google LLC (USA) — Google Analytics statistics, Google AdSense advertising, and Google account sign-in.
• Resend (USA) — delivering contact form messages to the team's mailbox.
• OpenAI, xAI (USA) — when a signed-in player uses the image generation feature of the personal asset library, the description they type is sent to these providers. Nothing is sent if you do not use that feature.

8. Your rights

You may ask at any time to see, correct, delete, or stop the processing of your information. Use the contact page or the email address below and we will act without delay and tell you the result.

For records left without signing in (nickname, score, comment), tell us the nickname or the record number shown in the game so we can find it.

Requests: nseed@nseed.co.kr

9. Children under 14

We do not knowingly collect personal information from children under 14. If we learn that such information was collected without a guardian's consent, we delete it immediately. Guardians can ask us to check and delete it at the email address above.

10. Security

All connections are encrypted with HTTPS. The sign-in cookie is HttpOnly so scripts cannot read it, and it is signed to prevent forgery. Stored information is accessible only to the few people who need it to run the service.

11. Privacy contact

Person in charge: Privacy Officer (EchoPlayroom 운영팀)

Email: nseed@nseed.co.kr

Send privacy questions, complaints, and remedy requests to this address.

12. Changes to this policy

If this policy changes, the change and its effective date will be posted on this page. Changes that disadvantage users will be announced at least seven days in advance.

Effective date: September 18, 2026