マーダーミステリーパラドクス このひと夏の十五年
213℉ · 2023 · Adventure, Visual Novel, Choose Your Own Adventure, 2D, Anime
PC
Very Positive85% · 240
Compare prices in Official Stores
Screenshots
About マーダーミステリーパラドクス このひと夏の十五年
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/1_v2.png.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/2.png.
"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. ......
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/3.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/4.gif.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/5.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/6.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/7.gif.
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? ......
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/8.png.
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.
■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
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/2.png.
"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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/3.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/4.gif.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/5.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/6.gif.
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.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/7.gif.
■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? ......
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2203040/extras/8.png.
■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.
DLC & expansions
🎁 Complete the collection
Base game + 1 of 1 DLC at today's best prices.
$16.98
to own everything
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
I got this game on a sale and even though I know very little Japanese I was able to somewhat understand it with the help of Screen Translation.As for the review,It's a good solid mystery game, It reminded me of Summertime Rendering with how both take place in a small island and dealt with time travel. There were some questions I still have after getting the true ending but i think they wrapped it up pretty nicely. Overall, A solid game and one I would recommend getting on a sale if you are a fan of mystery/deduction and games of that like. It's also helped me to practice learning Japanese but that's just my personal opinion.13 found this helpful
マーダーミステリーパラドクス このひと夏の十五年 is a narrative-focused mystery adventure that translates the structure and tension of tabletop murder mystery games into a carefully paced single-player experience. Developed by 213℉ and published by Aniplex Inc., the game leans heavily into storytelling, social deduction, and player-driven reasoning rather than traditional puzzles or action mechanics. It is a title that rewards attentiveness, emotional intelligence, and the willingness to engage deeply with characters whose words and silences can be equally revealing. The story unfolds during the summer of 2004 on a remote Japanese island, a setting that immediately establishes a sense of isolation and unease beneath its tranquil surface. You play as Itsuki Amazawa, a teenager visiting the island for the first time, gradually becoming entwined in a long-standing local mystery tied to unexplained disappearances. What initially feels like a nostalgic summer visit slowly transforms into something far more unsettling as personal histories, buried secrets, and conflicting memories come to light. The narrative makes strong use of time, memory, and perspective, allowing the island itself to feel like a silent wi…1 found this helpful
Community reviews
—
0 reviews
Sign in to write a review.
No reviews yet. Be the first to review this game.
