Game8 Store – Developer Center
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Getting Started

📝 This is a reference translation. In case of any discrepancy, the Japanese version prevails.

This Developer Center provides information about the Game8 Store: how it works, the process for starting sales, API specifications, and implementation methods.

What is Game8 Store?

Game8 Store is a service for selling in-game items and Steam download keys within "Game8".

※ This Developer Center covers in-game item sales. If you would like to sell download keys (e.g., Steam keys), please contact us separately via the Partner Inquiry .

Integration at a Glance

The path to launch consists of five steps: application & game registration → sales preparation → API integration → purchase testing & verification → go live.

To sell in-game items, publishers implement three required APIs (check, register, user_info) and one recommended API (stock).

There are two integration methods: reusing an existing API, or a new implementation. For details, see Technical Integration Overview .

Start Here

Learn About and Evaluate the Service

Move Forward with Onboarding and Implementation

If You Need Help

First, please check the Frequently Asked Questions . If that does not resolve your issue, you can contact us via Partner Inquiry .