Privacy Policy
This translation is for reference. The Korean version prevails.
Effective: Oct 6, 2026
Changes on Oct 6, 2026: The Commute Home now asks for consent to play records in the game lobby after the tutorial (it doesn’t block play until you answer). If you choose “No thanks”, the records collected on your device before consent are deleted right away, and if you withdraw consent, the records you sent are deleted right away too. Play records now also include boss fight results (the boss’s remaining health and damage taken from each boss pattern). If you come to Mukkit List through an ad or promotional link, the source label on that link (e.g. “Instagram”) is recorded once with the usage data, the first time you arrive (Mukkit List in “3”). No cookies or ad scripts are added.
At a glance
- We don’t ask for or store your name, email or phone number. When you sign in with Google, Google also sends your email, name and profile photo — we don’t store them and discard them right away.
- The homepage uses no cookies. Access logs are kept for 90 days only, with the last part of the IP address removed.
- The Commute Home creates a random account number to keep your progress. If you sign in with Google, your STUDIO GOAT account keeps only one thing — your Google account’s unique ID — and passes only your studio account number to each work.
- Play records are collected only from people who agree, and are kept under a separate number that isn’t linked to any account. If you don’t agree, the records on your device are deleted; if you withdraw consent, the records you sent are deleted too.
- Mukkit List works without signing in, and then uses no cookies. If you sign in with your STUDIO GOAT account, your picks are saved to your account so you can continue on other devices and in groups. Shared results are deleted after one year.
- We don’t sell or hand over the information we receive.
1. Who runs this
STUDIO GOAT is a small studio made and run by 강한염소 alone. This policy applies to all four of the following.
- Homepage — https://stgoat.ai.kr
- The Commute Home (POTENTIA 1) — https://potentia.stgoat.ai.kr
- STUDIO GOAT account — https://account.stgoat.ai.kr
- Mukkit List — https://mukkit.stgoat.ai.kr (from the day it opens to the public)
If you have questions, contact kimtjqltm@gmail.com.
2. What we collect, and why
Homepage
| What we collect | When | Why |
|---|---|---|
| Access logs — IP address (with the last part removed), time of access, address of the page viewed, browser type | Automatically by the server when you open a page | Counting visits, handling outages and attacks |
STUDIO GOAT account
| What we collect | When | Why | Required? |
|---|---|---|---|
| We keep only your Google account’s unique ID (the email, name and profile photo Google sends at sign-in are not stored and are discarded right away), your studio account number, and when the account was created and last used | When you tap “Connect with STUDIO GOAT account” in a work, or sign in with Google on the account page | Signing in once and using the same account across works | Optional |
| Information to keep you signed in | When you sign in | So you don’t have to sign in again for each work | Optional |
| List of connected works and when each was first connected | When you connect a work | Showing it in “My account”, and telling each work when you delete your account | Optional |
| IP address | On every request | To block excessive requests. Used only in memory, never stored | — |
- Google’s sign-in result always includes your email, name and profile photo. They stay in server memory only for the brief moment it takes to verify the sign-in. Once the unique ID has been taken out, they are not stored or logged anywhere.
- Works receive only your studio account number, not your Google unique ID.
The Commute Home
| What we collect | When | Why | Required? |
|---|---|---|---|
| Random account number, information to keep you signed in, when the account was created and last used | Automatically on your first visit (no sign-up) | Keeping your progress, continuing on other devices | Only if you use cloud saves |
| Game save — progress such as level, stats, stations passed and items held (latest one only) | Automatically when you return to the lobby | Keeping your progress, continuing | Only if you use cloud saves |
| STUDIO GOAT account number (we don’t receive your Google unique ID; IDs received earlier through the old “Connect Google” are deleted after being moved to studio accounts) | When you tap “Connect with STUDIO GOAT account” | Continuing with the same account on other devices | Optional |
| Play records — game statistics such as where and how each run ended, time taken, stat allocation, control method, the language the game is displayed in (Korean, English or Japanese), screen ratio and orientation, whether opened full-screen or as a home-screen app, type of in-app browser (e.g. KakaoTalk), playing time per session and time spent in the lobby, time per tutorial step, whether the window was closed mid-run, and hints shown in that run, the boss’s remaining health when a boss fight ends and damage taken from each boss pattern — plus a random number for analysis | Only if you agree, when you return to the lobby. When you agree, any not-yet-sent records collected on that device before consent (up to the last 200 runs) are sent too | Tuning difficulty and balance | Optional (consent) |
| Feedback — text you write (up to 300 characters) and information about that run (station, difficulty, result, time) | When someone who agreed to play records sends it with “Leave feedback” | Improving the game | Optional |
| IP address | On every request | To block excessive requests. Used only in memory, never stored | — |
- Play records and feedback are grouped only by a separate random number, not by account number. The server has nothing that links the two, so even the operator can’t tell whose records they are.
- Records before consent: Play records from before you’re asked, and before you answer, stay only on your device and are not sent to the operator. If you choose “No thanks”, all records on your device are deleted right away. If you agree later, only records from then on are sent; deleted records are not restored.
- Please don’t write your name or contact details in feedback. If you do, we won’t link it to any account, and it is deleted after the same period as play records.
- Game saves, your consent choice, sound settings and the like are also stored in your browser. Nothing beyond what is listed in the table above is sent to the operator.
Mukkit List
Applies from the day it opens to the public.
| What we collect | When | Why | Required? |
|---|---|---|---|
| Shared results — random link number, chosen theme, the list of foods marked “Eaten” or “Not yet”, the creator’s display language (used to draw the preview image in that language), time created | Only when you tap “Share my result” or “Send my result to a friend” | Showing the result and comparison to people who receive the link | Optional |
| Nickname (1–8 characters) | Only if you write one when sharing or after signing in | Shown on the share card, comparison screen and in groups | Optional |
| STUDIO GOAT account number (we don’t receive your Google unique ID, email, name or photo), when the account was created, information to keep you signed in | When you tap “Sign in with STUDIO GOAT account” | Continuing on other devices, groups | Optional |
| Picks — “Eaten” or “Not yet” for each food | When you pick while signed in | Continuing on other devices, comparing in groups | Optional (sign-in) |
| Groups — groups you created or joined, invite links | When you create a group or join through an invite | Comparing among group members | Optional |
| Usage data — screen flow such as start, finish and share (10 kinds), theme, display language (Korean, English or Japanese, whichever Mukkit List is displayed in), a random number created in your browser, your account number if signed in, time (no IP address and no chosen foods) | Automatically while you use it | Seeing where people stop, and fixing it | — |
| Where you came from — if you arrive through an ad or promotional link, the source label on that link (e.g. “Instagram”), tied to the same random number as usage data (and your account number if signed in) (no ad-platform tracking IDs and no previous page address) | Once, the first time you arrive through that link | Seeing which promotion helped | — |
| Feedback — category, text you write (up to 300 characters), theme and food, your browser’s random number, your account number if signed in | When you send it with “Send feedback” | Improving Mukkit List (we don’t reply) | Optional |
| Access logs — IP address (with the last part removed), time of access, address of the page viewed, browser type | Automatically by the server when you open a page | Handling outages and attacks | — |
| IP address | On every request | To block excessive requests. Used only in memory, never stored | — |
- You can use it without signing in. There are no analytics tools, ads or external scripts (usage data is received directly by the Mukkit List server).
- Sign-in is handled by STUDIO GOAT account; Mukkit List receives only your studio account number.
- If you go to Mukkit List from the homepage (stgoat.ai.kr) while signed in to your STUDIO GOAT account, you are signed in to Mukkit List automatically (this creates the one cookie that keeps you signed in). If you open Mukkit List from any other link, it opens signed out as before.
- Group members can see your picks and nickname for that theme.
- Anyone with a share link can see that result and nickname. Shared results are not listed in search engines.
- Please don’t use your real name or contact details as a nickname.
- Results compared with a friend are not stored separately; the two shared results are compared on the spot.
- Your in-progress picks, picks, last nickname, last share link and the random number for usage data are also stored in your browser (not cookies). If you’re not signed in, your picks stay only in your browser and are not sent to the operator.
3. How long we keep it
| Information | Kept for |
|---|---|
| Homepage and Mukkit List access logs | Deleted automatically after 90 days |
| STUDIO GOAT account (Google unique ID, list of connected works) | Deleted immediately when you delete it in “My account”, and every connected work is told to delete it too. If deletion fails on a work’s side, we retry once a day |
| The Commute Home account, game saves, studio account number | Deleted immediately when you delete the account. Accounts not connected to Google are deleted automatically 365 days after the last visit |
| Information to keep you signed in | Up to 400 days (90 days for Mukkit List), or until you sign out |
| Play records and feedback | Deleted automatically 3 years after receipt. If you withdraw consent, the play records and feedback sent under that device’s analysis number are deleted immediately (copies in backups disappear within 14 days) |
| Mukkit List shared results and nicknames | Deleted automatically 1 year after creation. Send us the link and we delete it right away |
| Mukkit List account, picks, group memberships | Deleted immediately when you tap “Delete my Mukkit List records” or delete your STUDIO GOAT account |
| Mukkit List usage data (including where you came from) and feedback | Deleted automatically 1 year after receipt |
The database is backed up daily, and backups are deleted after 14 days. So deleted information may remain in backups during that period.
4. Do we share it
- We don’t sell or hand it over to anyone. The only exception is a request by investigative or other authorities following procedures set by law.
- Entrusted processing: Amazon Web Services, Inc. — the servers the services run on and data storage (from Oct 5, 2026). Information is stored in the Seoul region, in the Republic of Korea. No other company has been entrusted with processing personal information. We use Gabia for the domain, but no personal information is passed to them.
- When you sign in to your STUDIO GOAT account, you sign in directly on the sign-in screen of Google (Google LLC, USA). As a result, Google sends your Google account’s unique ID, email, name and profile photo to STUDIO GOAT account, which keeps only the unique ID. The email, name and profile photo are not stored and are discarded right away. Works receive only your studio account number instead of this ID. Information Google handles in this process is covered by Google’s privacy policy.
5. Cookies
- Homepage: No cookies. No analytics or ads either.
- The Commute Home: One cookie to keep you signed in. It travels only over encrypted connections and can’t be read by scripts on the page. No advertising or tracking cookies.
- Mukkit List: No cookies unless you sign in. Only for people who sign in, one cookie to keep you signed in (90 days). It is used only on the Mukkit List address, travels only over encrypted connections and can’t be read by scripts on the page. No analytics or advertising cookies.
- STUDIO GOAT account: One cookie to keep you signed in. It is used only on the account address (account.stgoat.ai.kr) and is never sent to other addresses. It travels only over encrypted connections and can’t be read by scripts on the page. When the Google sign-in button is shown, Google’s cookie policy applies.
- You can block cookies in your browser settings. If you do, you can’t use cloud saves or continue on other devices in The Commute Home, but you can keep playing with on-device saves.
6. To delete or check your information
- Delete your account: In The Commute Home, “Account · Cloud” → “Delete account”. Your account and cloud save are deleted immediately. (On-device saves remain.)
- Delete your STUDIO GOAT account: At https://account.stgoat.ai.kr, “My account” → “Delete STUDIO GOAT account”. Your studio account and the accounts and cloud saves in every connected work are deleted.
- Agree to or withdraw from play records: You’re asked in the game lobby after the tutorial (it doesn’t block play until you answer; if you haven’t answered yet, you’re asked once more right after you connect an account), and can change it anytime in “Account · Cloud”. If you withdraw, the play records and feedback sent from that device are deleted right away and a new analysis number is created, so agreeing again won’t link to the deleted records.
- Start over: “Full reset” in the lobby deletes game saves on this device and in the cloud.
- Take your progress data with you: You can keep it yourself with “Export save code”.
- Delete your Mukkit List records: Tap “Delete my Mukkit List records” in Mukkit List to delete your picks, sign-in and group memberships. Deleting your STUDIO GOAT account also deletes your Mukkit List records.
- Delete a Mukkit List shared result: There’s no account, so the operator can’t tell whose result it is. Send the share link you want deleted to kimtjqltm@gmail.com and we’ll delete it right away.
- Other requests (access, correction, deletion, suspension of processing): Send them to kimtjqltm@gmail.com and we’ll handle them promptly. Play records and feedback, however, aren’t linked to any account, so the operator can’t tell whose they are. Withdrawing consent in the game deletes them right away. If the analysis number on the device is gone because you cleared browser storage or changed devices, they can’t be deleted from the game either, and are deleted automatically 3 years after receipt.
7. How we protect it
- All connections are encrypted (HTTPS).
- Sign-in information is stored only as transformed values, never as originals.
- The database is blocked from outside access.
- We limit request size, validate input and block excessive requests.
- The homepage runs without external scripts.
- We back up daily.
8. If you are under 14
This service doesn’t ask for or store names or contact details. If you are under 14, please don’t use “Connect with STUDIO GOAT account”, and choose “No thanks” when asked about play records. When sharing in Mukkit List, please don’t use your real name as a nickname. If we learn that information from someone under 14 has been processed, we delete it right away.
9. Privacy officer
- Officer: 강한염소
- Contact: kimtjqltm@gmail.com
10. Where to get help
If you need advice or dispute resolution about a privacy violation, you can contact the following organizations (in Korea).
- Personal Information Dispute Mediation Committee — 1833-6972, www.kopico.go.kr
- Personal Information Infringement Report Center — 118 (no area code), privacy.kisa.or.kr
- Supreme Prosecutors’ Office — 1301 (no area code), www.spo.go.kr
- Korean National Police Agency — 182 (no area code), ecrm.police.go.kr
11. When this policy changes
When we change this policy, we post the changes and their date on the homepage, and they apply from the day they are posted. If a change is to your disadvantage, we announce it 7 days in advance.