PENTALOOP -ペンタループ-

A multiplayer murder mystery where the killer may be among you

イバラユーギ×ひろゆ～プロジェクト · Published by ひろゆ～ · Released May 29, 2025

Reviews: Mostly Positive; 73% of 56
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Unsupported
Last update on Steam: 1 year ago; Jun 2, 2025
Minimum PC: UHD 620; 8 GB RAM · 0.4 GB disk; Full requirements

What is PENTALOOP -ペンタループ-?

This four-player mystery adventure begins with your characters waking up in a room with a corpse. You choose different characters, investigate, and vote toward an ending over one to two hours. No game master is required, but everyone needs their own copy and an external communication tool such as Discord.

For you if...

+you like social deduction and making choices as a group

Not for you if...

−you want a mystery you can play alone

Screenshots and trailer

PENTALOOP -ペンタループ- system requirements

Minimum: UHD 620, 8 GB RAM, 0.4 GB of disk space.

As published by the developer.

Can my PC run PENTALOOP -ペンタループ-?

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Minimum

OS: Windows 10 or 11 (64bit)
Processor: Intel Core i5-8250U
Graphics: intel UHD graphics 620
Memory: 8 GB RAM
Storage: 450 MB available space

Does PENTALOOP -ペンタループ- have co-op or multiplayer?

Yes: co-op online; PvP online. There is no single-player mode.

Does PENTALOOP -ペンタループ- run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Graphics settings cannot be configured to run well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 6
Steam features: Family Sharing
Languages: Text only: Japanese.

Does PENTALOOP -ペンタループ- use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 28, 2026. How to filter AI games on Steam