THE 13th Digit

Cross the line. Learn what a life is worth.

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 — a choice in the first hour can change who lives in the last.

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.

One hidden ending

Reach the TRUE END and a bonus story opens — one you won't see coming.

How much is a human life worth? Cross the line and find out.

Languages: English, 日本語 (full text). The game auto-selects your system language; switch anytime from the title screen.