Game8 Store – Developer Center
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Asset Guidelines

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

This page describes the specifications for images and text assetspurchase flow for Game8 Store

It covers asset types, size requirements, design guidelines, and submission instructions.

Image Assets

Asset NameRequirement & QuantityUsageDesignSizeFile Format
Main Image
Required
1 image
Displayed on the game detail page and game list page.
Game logo and artworkMinimum 1024x576. Aspect ratio: 16:9.png
Pack Image
Required
1 image per product
Displayed on the in-game item sales page.
1 image
Minimum size: 256×256. Aspect ratio: 1:1.Other sizes and ratios are also acceptable.
pngTop Page Banner (PC)RequiredRequired
Game logo and artwork
2240×748 px
1 imageTop Page Banner (PC)Minimum 1024x576. Aspect ratio: 16:9.Displayed on the PC top page.Required
2240×748 px
png
1 imageDisplayed on the smartphone top page.Minimum 1024x576. Aspect ratio: 16:9.1200×630pxRequired

top page(https://store.game8.jp/

in-game item sales page

Submission Method

  • Please send the assets to your sales representative.