PC $19.99 Region US
Games Adventure マーダーミステリーパラドクス このひと夏の十五年
マーダーミステリーパラドクス このひと夏の十五年: header artwork
Adventure · 213℉

マーダーミステリーパラドクス このひと夏の十五年

マーダーミステリーパラドクス このひと夏の十五年
Steam Deck Playable Windows Brazil · 16+
Very Positive · 86% of 266
Developer213℉
ControllerPartial
Wait Price verdict · US updated 5 days ago

The current price is close to full price. Seasonal sales have priced it lower.

Why this verdict
Lowest since 18 Jun 2026 $9.99 · 21 days ago
Player reviews 86% positive of 266
Quality score 86/100
Value score 0/100

Price memory

Official-store evidence for this region · US

Price comparison supported
  1. Current official price $19.99
  2. Regular price $19.99
  3. Recorded low $9.99
  4. Compared with usual sales Not recorded
  5. Observed sale intervals Not enough recorded sale starts for an interval range.
  6. Interval samples 0
  7. Observed window Jul 6, 2026 to Jul 6, 2026 · 0 days
  8. Confidence insufficient

Offers

Official store prices and labeled keyshop comparisons

Official stores (1)
Steam
checked 5 days ago Lowest price
Store low $9.99 · Lowest across stores $9.99
Steam, official store, $19.99
$19.99 Buy on Steam
Direct store link. Payment stays with the store.
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Price history

Accepted price history and recorded lows

Historical lows
Lowest since 18 Jun 2026 $9.99 2026-07-06
Lowest since 18 Jun 2026 $9.99
Lowest since 18 Jun 2026 $9.99
Current $19.99
Sale cadence
Recorded sale starts 1
Price events From the accepted price history
Jul 11, 2026
Sale ended · back to $19.99
Jul 6, 2026
Sale started · -50% to $9.99
Jul 6, 2026
Lowest since 18 Jun 2026 $9.99

DLC

Packs and bundles

About this game

What this game is, in the developer's words

"Murder Mystery Paradox: Fifteen Years of Summer" is a text-based adventure game. Enter the remote and sparsely populated island of Shikinejima and attempt to solve the strangely recurring mystery found there.

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■Game Features

.A text adventure game in which the player searches for the culprit through deduction and conversation.
The game system is based on the motif of "Murder Mystery", a new genre of analog games.
Even if you have never played "Murder Mystery" before, you can enjoy the game.
It takes about 10 hours to complete the game.
The game features multiple endings, with the ending branching off depending on the player's choices.
A wealth of hints to guide players when they get stuck in solving the puzzles.
A demo version is now available to play the first few hours of the game. The full version of the game can be played by skipping the trial version.
The entire game is available for download.

■Game Outline

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"The culprit is in here!"

You will take part in the search for the culprit of an incident that took place in a closed situation. However, you yourself are one of the suspects and are suspected by the others.

In the limited time available to you, you will gather clues to the case through conversations with the suspects, deduce from them, and uncover the truth. At the same time, you will need to gain the trust of those around you in order to clear your own suspicions.

If you end up without enough credibility, you may be made the culprit. ......

■Game System

.The mystery part of the search for the culprit proceeds in the following order: "Investigation Phase → General Discussion Phase → Voting Phase".

Investigation Phase.
Through one-on-one discussions with the suspects, information and questions about the case will be elicited.

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By providing information and answering questions in conversation, you will gain the trust of the other party and get to the bottom of the case.

.

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General Discussion Phase.
Each of the suspects will argue in turn what they have deduced about the case and the culprit within the investigation phase. Depending on whose arguments you agree with and whose arguments you deny, your own credibility will change.

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Voting Phase.
Based on the information obtained in the investigation phase and the general discussion phase, each suspect votes for the person they think is the culprit. The person with the highest number of votes will be detained as the culprit by you.

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■Synopsis

.August 2004.
Shikine Island, a remote island with a population of a few hundred.
A 15-year-old boy "Tatsuki Amazawa" visited Shikinejima for the first time this summer.
At his adoptive mother's family home, he meets his cousins who are not blood related and spends a peaceful time with them.

At that time, Tatsuru still did not know.
He did not know that a mysterious incident called "Shikinejima's Kamikakushi" had been happening again and again on the island.
And that the people he cares about are deeply involved in the mystery.

Will Tree be able to unravel the truth behind the mysterious incidents and save the people he cares about? ......

.

■Distribution Guidelines

Revised: March 1, 2024
The entire scope of video distribution of this work is now available for distribution.
In order to ensure that as many viewers as possible can enjoy the film, when distributing content that contains spoilers, please clearly indicate in the title that the content contains "Spoilers" or similar wording.

Media

Trailers and screenshots from the store page

Adult content

Latest news

Recent updates from the game's own feeds

Games like マーダーミステリーパラドクス このひと夏の十五年

Shared tags, not the same series.

マーダーミステリーパラドクス このひと夏の十五年 price history and current deals

マーダーミステリーパラドクス このひと夏の十五年 for PC currently sells from $19.99 at authorized stores. Lowest since 18 Jun 2026: $9.99.

マーダーミステリーパラドクス このひと夏の十五年 reviews, playtime, and age rating

266 people have reviewed マーダーミステリーパラドクス このひと夏の十五年. 86% are positive. Steam calls that Very Positive. Brazil rates it 16+, flagged for Violência, Temas sensíveis, Atos criminosos.

Frequently asked questions

Answered from this game's own data. Where I have none, I say nothing.

How does the current マーダーミステリーパラドクス このひと夏の十五年 price compare?
The price verdict is wait. Seasonal sales have priced it lower.
Which stores list マーダーミステリーパラドクス このひと夏の十五年?
マーダーミステリーパラドクス このひと夏の十五年 is tracked at Steam. This section lists authorized stores and links to their store pages.
Where can I buy マーダーミステリーパラドクス このひと夏の十五年 cheap?
From $19.99 at Steam right now. Its recorded low is $9.99, set on 2026-07-06.
Is マーダーミステリーパラドクス このひと夏の十五年 worth playing?
266 people have reviewed マーダーミステリーパラドクス このひと夏の十五年. 86% are positive. Steam calls that Very Positive.
What age rating does マーダーミステリーパラドクス このひと夏の十五年 have?
マーダーミステリーパラドクス このひと夏の十五年 is rated Brazil 16+, Indonesia 18+, Germany (Steam rating) 16+ across boards. The Brazil rating flags Violência, Temas sensíveis, Atos criminosos.
Scores
Steam reviews Very Positive · 86%
86% positive of 266
Media (10)
Tech
Steam DeckPlayable
SteamOSSupported
ControllerPartial
Requirements
System requirements platform
Minimum
Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows10 64bit
  • Processor: Intel Core i3-6006U
  • Memory: 4 GB RAM
  • Graphics: Intel HD Graphics 520
  • DirectX: Version 10
  • Storage: 4 GB available space
Recommended
Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows10 64bit
  • Processor: Intel Core i7
  • Memory: 4 GB RAM
  • Graphics: Intel UHD Graphics 630
  • DirectX: Version 10
  • Storage: 4 GB available space
Minimum
Minimum:
    Recommended
    Recommended:
      Minimum
      Minimum:
        Recommended
        Recommended:
          Facts
          Developer213℉
          PublisherAniplex Inc.
          GenresAdventure · Indie
          ModesSingle-player
          Steam features
          Family Sharing
          Ratings
          Brazil16+

          Violência, Temas sensíveis, Atos criminosos

          Indonesia18+

          Kekerasan

          Germany (Steam rating)16+

          Selbstmord

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