Kadokawa Games has announced total worldwide sales for Root Letter have topped 400,000 units.

That milestone includes worldwide sales via both digital downloads and retail copies of the game across Windows PC (via Steam), PlayStation 4, PS Vita, iOS, Android, and more.

Here’s a rundown on the game:

When a letter is delivered 15 years late – you discover an old pen-friend was involved in a murder, before she disappeared. Travelling to her hometown, you must investigate the murder, using her past letters as clues to uncover the disturbing truth. Using Visual Novel and investigative gameplay elements, Root Letter elevates the Visual Novel genre to a whole new level.

Key Features:

• An intense murder mystery set in a gorgeous, real-word, rural Japanese setting.
• Stunning Visual Novel artwork from the renowned artist Minoboshi Taro.
• Increased gameplay elements – search for clues, present evidence and explore environments.
• Travel freely around Shimane, visiting real world locations and interviewing suspects.
• Interrogation mode allows you to present evidence to characters and catch them out in lies.
• Unravel the truth from your pen-friend’s letters – was she telling the truth, was she even real?
• Make difficult choices as you straddle an investigation spanning 15 years.
• Five different endings with wildly different routes – for a huge level of replayability.
• Incredible Soundtrack from composer Takashi Nitta and lead voice actor role for Noriko Hidaka (Ranma)