
Screenshots

Watch trailer on Steam ↗PENTALOOP -ペンタループ-
イバラユーギ×ひろゆ~プロジェクト · Published by ひろゆ~
Mostly Positive — 73% positive (59 reviews) · 6 achievements
Last updated 2 Oct 2026
“PENTALOOP” is, a GM-less Murder Mystery game for 4 players. Play with family, friends, and like-minded people, Play together with your family, friends, or other like-minded people.
£3.39
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Adventure, Indie · 2025 · More under £5 games
Join four players in unraveling mysteries without a game master—PENTALOOP challenges you to solve crimes with your loved ones or fellow enthusiasts.
About this game
A game you can only play once in a lifetime.
No game master required!
No preparation required!
Playable in less than 2 hours.
A multiplayer mystery adventure game for 4 players.
Presented by “Ibara Yugi x Hiroyu Project,”
the first digital murder mystery game!
That is,
“PENTALOOP.”
※What kind of game is it?
Players select different characters.
The characters wake up in a room with a corpse.
Through repeated investigation and voting, work together to reach the ending.
But be careful.
There may be a murderer among you who created the corpse.
【Overview】
‘PENTALOOP -Pentaloop-’ is amurder mystery game for 4 players
that can be played using only a mouse.
All 4 players must own the game and communicate via Discord or other communication tools.
A GM (Game Master) is not required.
Number of players
4
Playing time
1–2 hours
*Our circle creates games with time settings that are easy to play in live streams or broadcasts.
【Important notes】
We welcome live streams of gameplay videos, whether by individuals or companies.However, please be sure to check the following guidelines.
・Please include the store page URL in the description or other areas accessible to viewers.
• We permit monetization through features provided by video platforms (ad revenue, donations, etc.).
• Streaming or broadcasting content that includes defamation or violates public order and morality is prohibited.
• “Ibara Yugi × Hiroyu Project” shall not be held liable for any damages or issues arising from streaming or broadcasting the game.
・The Twitter (X) hashtag is “#Pentaloop.” Fan art and derivative works are also welcome.
However, when discussing content that contains critical spoilers on social media,
please use tools like Fessetter or Poipik.
・This agreement may be modified without notice, and the modified terms will apply to videos created after the modification.
【Production】
Ibara Yugi × Hiroyu Project【Credits】
Director: Hiroyu (@hiroyuuuu)Screenplay: Ibara Yugi (@ibarayugi)
Illustrations: Erisaki (@erisaki_coda)
Editing: Memeko (@memekosanma)
Music: Suzuki Puyo (@SuzukiPuyo)
Programming: RainyDoll (@RainyDollGames)
※If you encounter any issues while playing
If, for any reason, someone's connection is lost during gameplay, everyone's connection will be lost and the game will return to the title screen. However, it is possible to resume from where you left off.
If you encounter any issues while playing, you may try force-closing the game and restarting it.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 or 11 (64bit)
- Processor: Intel Core i5-8250U
- Memory: 8 GB RAM
- Graphics: intel UHD graphics 620
- Network: Broadband Internet connection
- Storage: 450 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
📢Steam Winter Sale💥
Steam Winter Sale has started!『PENTALOOP』『PENTALOOP Original Sound Track』Both are 20% off until January 5, 2026.We hope you enjoy playing them over the holidays💣🐧Read full article on Community Announcements (ひろゆ~)AnnouncementsOfficial
📢Steam Autmun Sale!!
The Steam Autumn Sale is on now!『PENTALOOP』『PENTALOOP Original Soundtrack』Both are 20% off until Tues, Oct 6.We’d love for you to check them out and have some fun with the game and soundtrack!💣🐧Read full article on Community Announcements (ひろゆ~)Patch NotesOfficial
ver1.0.1
・いくつかのバグを修正しましたRead full article on Community Announcements (レイニードール)






