Ask Anything. Trust No Answer Completely.

In The Last Question, you step directly into a series of unresolved mysteries.

Question the people involved, search important locations, collect evidence, organize timelines, and find the contradiction that breaks each case open. In the end, the truth must be reconstructed through your own reasoning.

There is no predefined list of questions waiting for you.

What you ask is entirely up to you.

Do Not Choose a Line. Ask the Question Yourself.

Type what you want to ask and speak naturally with the people involved in the case.

Begin with an overlooked detail, pursue a suspicious statement, or present evidence and confront someone with a contradiction.

Every character has their own identity, history, motives, memories, and secrets. They may confess, evade, conceal information, or lie.

There is no single interrogation order. You decide whom to question first, whom to trust, and which detail to pursue next.

An Answer Is Testimony, Not the Solution

Everything an NPC tells you is only one piece of the case.

A response may reveal a new clue—or deliberately lead you in the wrong direction. Important information must be checked against physical evidence, other statements, times, locations, and movements.

Do not wait for someone to volunteer the truth.

Observe their reactions, follow up on details, find claims that cannot all be true, and use evidence to break through the lie.

Investigate a World That Keeps Moving

The investigation does not end at the dialogue box.

In some cases, time continues to advance and characters follow their own schedules. Move between locations, search scenes, collect items, complete objectives, and decide where you need to be—and whom you need to find.

Every movement and decision may cost valuable time. Miss a person and you may lose an essential statement. Overlook an item and the entire chain of reasoning may remain incomplete.

• Explore Locations:Move through the case map and investigate different areas.

• Track Characters:Compare statements against NPC locations and schedules.

• Collect Items:Discover, use, or combine objects connected to the case.

• Manage Time:Decide what to do before the next critical event occurs.

Turn Fragments into the Truth

Use the case board to organize relationships, testimony, items, and important clues while recording your own analysis.

Bring scattered information together and reconstruct the order of events:

• Who had a motive?

• Whose timeline does not hold up?

• Which statements can be independently verified?

• Who is hiding the truth—and why?

• What decisive detail have you overlooked?

In the end, you must submit your own judgment and stand behind your conclusion.

Different Cases. Different Rules.

The Last Question features multiple original case structures.

One mystery may confine you to a closed room filled with suspects. Another may place you in a living world where you must investigate locations, follow characters, collect items, and respond to approaching events before time runs out.

Cases may include:

• Free-form questioning and testimony comparison

• Scene investigation and clue collection

• Relationship and motive analysis

• Timed map exploration

• NPC schedules and movement

• Item collection and combination

• Case-board and timeline organization

• Critical choices and final judgments

AI Plays the Characters. You Solve the Case.

NPC dialogue is generated in real time and constrained by each character’s identity, memories, motives, established case facts, current game state, and content-safety rules.

Ask the same question in a different way and you may receive a different reaction. But the AI provides character testimony and behavior—not a system-approved solution.

You must still investigate scenes, collect evidence, verify statements, and complete the final deduction yourself.

Key Features

• Live AI Character Dialogue:Type your own questions without relying on a predefined list.

• Open-Ended Investigation:Choose your interrogation order, route, and next action.

• Dynamic Character Reactions:NPC responses reflect their settings and the current state of the case.

• Multiple Case Structures:Experience interrogation, exploration, timed action, item collection, and final judgment.

• A Complete Deduction Process:Organize relationships, verify testimony, expose contradictions, and submit your conclusion.

• Original Mystery Stories:Investigate cases built around identity, secrets, relationships, desire, and human nature.

Evolving Throughout Early Access

The current version includes complete playable official cases and the core systems for free-form questioning, map exploration, clue collection, case-board organization, timelines, and final judgments.

During Early Access, we will continue adding original cases and case formats while improving deduction difficulty, AI character behavior, case pacing, interface interactions, and overall stability based on player feedback.

The truth will not volunteer itself. What will your last question be?