
THE 13th Digit
A cyberpunk execution noir
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Free
In-App Purchases
About
THE 13th Digit is a branching cyberpunk noir where you execute the untouchable.
In the megacity of Neo-Babylon, the law has one final clause: the moment a person's hidden wealth crosses one trillion dollars, they forfeit their right to live. You are K — the executioner who enforces that line.
But the numbers have started to lie. As you carry out one execution after another, a single question tightens around you: who decides the value of a human life — and what happens when the system itself is the criminal?
■ A story that branches on every choice
Your decisions reshape the plot, the people at your side, and the ending you reach. Five distinct endings. Two full routes. Nothing you do is forgotten.
■ Cyberpunk noir, told with intent
Hand-drawn art, a rain-soaked dystopia, and a terse, hard-boiled script. Investigate crime scenes, read between the lines, and assemble the truth from what people refuse to say.
■ More than just reading
Hack terminals, route signals, and crack security in tactile minigames woven into the story — not busywork, but the moments K's hands do the work his conscience can't.
■ Free to begin
Play the entire first route for free. Unlock New Game+, every route, and all five endings with a single one-time purchase — and if you reach the TRUE END, a hidden bonus story opens just for you.
How much is a human life worth? Cross the line and find out.
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What's New in THE 13th Digit
1.1.0
July 12, 2026
English language support is here. THE 13th Digit is now fully playable in English — the story, the menus, the items, everything. The game selects your device language automatically, and you can switch between English and Japanese anytime from the title screen. Also includes stability fixes and polish.
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In-App Purchases
$1.99
2周目〈NG+〉解放
1周目クリア後に2周目(NG+)を解放。別の選択で、もう一度この物語を。



