App: Hero's Journal: Idle RPG (영웅의 성장일지) · Developer: TERAGAMEZ · Package: com.teragamez.heroes
To help us answer quickly, please include the following when you contact us.
- Device model and OS version (e.g. Galaxy S25 / Android 16)
- App version (shown in the app details on Google Play, e.g. "0.18.0")
- The class, level and best stage of the hero slot with the problem
- What happened and when — a screenshot if you can
- For payment issues, the order number on your store receipt (Google: starts with GPA. / Apple: Order ID)
Frequently asked questions
Account & saves
Do I need to sign up or log in?
No. On first launch the Game creates a guest account from a device ID and saves your progress to TERAGAMEZ servers automatically. We do not ask for your name or email address.
Where is my progress saved?
Both on your device and on our server. If the server cannot be reached you can keep playing from the save on your device, and it is synced the next time you are online. Features that need server confirmation, such as purchases, work only while connected. You can see the connection status under the Settings button (the game text is in Korean: 설정).
Can I move to a new phone?
On Android, use Settings → Link Google Play account (Google Play 계정 연결) and you can continue on a new device with the same Google Play account. An unlinked guest account is tied to its device, so changing devices or clearing the app's data may lose your progress.
What are hero slots?
Each slot raises its own hero (class, level, gold, gear, codex, stage). You start with 1 slot and can open up to 4 with Hero Slot in the shop. Magic Stones, the Remove Ads pass and your purchases are shared by every slot on the account. Idle rewards build up only for the slot you are currently playing.
Can I move gold between slots?
If you own at least one extra slot, you can move gold from another slot into your current one. A 50% fee is taken from the gold you send and the rest arrives.
I want to delete my account and data.
The current version has no in-app delete button, so we take requests by email.
Idle rewards
Do I get rewards while the app is closed?
Yes. When you reopen the app you receive gold, EXP and gear for the time you were away, up to 8 hours. Watching an ad doubles it, and with the Remove Ads pass it is doubled automatically without an ad.
My idle rewards seem small.
Idle rewards are based on your best stage, and time beyond 8 hours is not counted. Slots you are not currently playing do not collect idle rewards.
Purchases & refunds
I paid but did not receive my item.
Purchases are delivered after our server verifies them. Check your internet connection, reopen the app and check your balance in the shop. If it is still missing, contact us with the order number from your store receipt.
I would like a refund.
Payments are processed by the store, so refunds are requested from the store: on Android from your Google Play order history, on iPhone at reportaproblem.apple.com. When a refund is issued, what that purchase granted is taken back
Are there random items (loot boxes)?
Yes. When you open a Common or Advanced gear chest, its grade and item are decided by chance. The odds for each grade, for your current stage, are shown under View odds (확률 보기) on the chest cards in the shop.
Ads
When do ads play?
Only when you tap an ad button yourself — for the free reward box, extra dungeon entries, doubled idle rewards or a boss-fight revive. Rewards are given only if you watch to the end, and there are daily limits (for example, the free reward box 3 times a day). With the Remove Ads pass you get these rewards without watching.
An ad won't play.
Ads need an internet connection, and sometimes no ad is available. Please try again a little later.
Settings & gameplay
How do I change the sound?
Open the Settings button to turn sound effects and music on or off and adjust their volume. The same window lets you return to the main screen or quit the game.
Is the game available in other languages?
The game text is currently in Korean only.
The game is slow or I found a bug.
Fully close the app, open it again and check the store for the latest version. If the problem continues, email us your device, app version and what happened. Screenshots help a lot.