Before you write
The more context you include, the faster we can help. When emailing support@hyakaninteractive.com, please mention:
- Which game (see below)
- Platform — Steam, iOS, Android, or web
- Device model and OS version, if relevant
- What you expected vs. what happened
- Steps to reproduce the issue, if you can
- Screenshots or screen recordings, when helpful
Our games
- Basketball Dynasty Manager (Steam, in development) — privacy policy
- Black Hole Brick (mobile / web) — privacy policy
Purchases and refunds
Store billing is handled by the platform where you bought the game. For payment, refund, or subscription questions, use that store’s support flow first:
- Steam: Steam Support
- Apple App Store: Report a Problem
- Google Play: Google Play Help
If the store cannot resolve your issue, email us with your receipt or order id and we will do what we can on our side.
Privacy and data requests
For access, deletion, or other privacy requests, email privacy@hyakaninteractive.com. Each game has its own policy — links are in the list above.
Response times
We are a small studio and do not operate a 24/7 ticket desk. We aim to reply within a few business days. Urgent security issues get priority — put “security” in the subject line if that applies.