Support
Contact
E-mail: quocbao.uit@gmail.com
Please tell us your device model, whether you play on Android or iPhone, and the game version (shown on the game's
store page). For anything about a purchase, add the order number: on Google Play it starts with
GPA.; on the App Store use the order ID or transaction ID from Apple's receipt e-mail. You can write in
English, Vietnamese or Chinese.
Frequently asked questions
Do I need an account?
No. The game has no sign-up and does not ask for your name or e-mail address. Your progress is saved on your device. Where cloud save is available, you can sign in to Google Play Games (Android) or Game Center (iPhone) to keep a copy of your progress in your own Google or Apple account; this is optional.
How do I restore my purchases?
On a new phone or after reinstalling, sign in to the same Google Play or Apple account you bought with, open the Workshop Shop in the game and tap Restore purchases. This brings back permanent items such as No Ads (Permanent) and the items of the Starter Engineer Pack.
Gems are a currency that is used up in the game and kept on your device. If a purchase was charged but did not arrive, tap Restore purchases first, then write to us with the order number.
How do I get a refund?
Payments are handled by Google Play or the App Store, so refunds are requested from them: Google Play refunds or Apple: Report a Problem. When a refund is granted, the game takes back what that purchase gave.
How do I delete my data?
- Data on your device (progress, levels you made, settings, wallet): uninstall the game, or clear its data in your phone's settings.
- Purchase records on our server: e-mail quocbao.uit@gmail.com with the order number of each purchase. We answer within 30 days and delete the records, except what tax or accounting law requires us to keep.
- Cloud save copy (if you used it): it is kept in your Google Play Games or iCloud account; delete it there. Uninstalling the game does not delete it.
- Advertising: change your choice in the game under Settings > Privacy options (where offered), and reset or delete your advertising ID in your phone's settings.
Details are in the Privacy Policy.
Why do I see a consent message about ads?
Where the law requires it, the game shows Google's consent message before any ad is requested. On iPhone, Apple's tracking prompt follows. You can change your answer later in Settings > Privacy options (shown where the consent message applies). The No Ads (Permanent) purchase removes the full-screen ads between levels; watching a rewarded video stays your choice.
I found a bug or a level that cannot be solved
Write to us with the chapter and level name, the mode (Build or Arrange), your device model and the game version. A screenshot helps.