By: Kadokawa Games, PQube
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Root Letter (stylized √Letter) is a visual novel adventure video game that is developed and published by Kadokawa Games as the first title in their Kadokawa Game Mystery brand. In the game, the player must figure out what happened to the character of Aya, a girl who mysteriously vanished after receiving a particular letter. The gameplay will be split into two distinct parts; the adventure part, where the player interrogates characters who knew Aya in order to find more information about her, and the simulation parts, where the player relives and plays through prior interactions with Aya.
PlayStation 4 · Jun 16, 2016
Japan · Exact date · IGDB
PlayStation Vita · Jun 16, 2016
Japan · Exact date · IGDB
PlayStation 4 · Oct 28, 2016
Europe · Exact date · IGDB
PlayStation 4 · Nov 10, 2016
North america · Exact date · IGDB
PlayStation Vita · 2016
Europe · Year · IGDB
PlayStation Vita · 2016
North america · Year · IGDB
PC (Microsoft Windows) · Jul 7, 2017
Worldwide · Exact date · IGDB
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26 achievements available.

Use the "Check" command 100+ times.
LockedSteam

Use the "Check" command 200+ times.
LockedSteam

Finish Chapter 1.
LockedSteam

Finish Chapter 2.
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Finish Chapter 3.
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Finish Chapter 4.
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Finish Chapter 5.
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Finish Chapter 6.
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Finish Chapter 7.
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Finish Chapter 8.
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Finish The Bond of Marriage Chapter 9.
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Finish The Bond of Marriage Chapter 10.
LockedSteam

Finish Crossing Paths Chapter 9.
LockedSteam

Finish Crossing Paths Chapter 10.
LockedSteam

Finish The Princess of Himegamori Forest Chapter 9.
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Finish The Princess of Himegamori Forest Chapter 10.
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Finish The Cursed Letter Chapter 9.
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Finish The Cursed Letter Chapter 10.
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Finish A Government Plot Chapter 9.
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Finish A Government Plot Chapter 10.
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All routes completed.
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Complete the Cursed Letter Route, Princess of Himegamori Forest Route, A Government Plot Route, and Crossing Paths Route.
LockedSteam

Acquired all items.
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Select all letter replies.
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Spot SHIMANEKKO 10+ times.
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First conversation with SHIMANEKKO.
LockedSteam
Community notes