Players in Japan should start from the App Store or Google Play links published by KONAMI. Store availability can depend on the account region, device, and current listing. Confirm that the publisher is KONAMI before installing or making a purchase.
Players outside Japan do not yet have a confirmed global mobile launch. A Japanese store page, preload, mirrored package, or third-party listing is not evidence that the game has released in another country. This guide does not recommend unofficial APK files or region workarounds. They can create account, update, payment, and security problems, and KONAMI has not documented them as supported access methods.
For PC, the legitimate action is to wishlist the game on Steam. The store page is public, but Steam explicitly says the title is not yet available and gives no Suikoden Star Leap release date.