The short mystery adventure “Bright Red Sun” that solves the mystery of the double sun and the disappearance case will be released on Steam in the summer

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On April 29, the Old Century Retina Museum announced that the Steam version of the mystery novel ADV “Crimsooon Sun” will be released in the summer of 2026, and also released the store page.

“The Red Sun” is a short mystery adventure game that solves the mystery of the double sun, an abnormal atmospheric optical phenomenon, and the disappearance case related to it.
It is a port of the same title released for iOS/Android in December 2024.

This work is a mystery novel, and there are no options, mini-games, game overs, or multi-endings, and you can get additional information by pulling the “trigger” in the part that bothers you as you progress.

In the final phase of the deduction arc, you will use the bullets collected by pulling the trigger to make a deduction, and even if you fail, the story will not be interrupted and you can enjoy the deduction until the end.

If you are interested, please add it to your wish list immediately.

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