PCGame

Mandemon

Mystery visual novel where different endings reveal different secrets

致意 · Released Aug 1, 2023

AdventureIndie

Reviews
Very Positive
87% of 380
Recent reviews
Not enough recent
Players
0
daily peak, Oct 28, 2026
Steam Deck
Playable
Last update on Steam
1 month ago
Sep 23, 2026
Minimum PC
OpenGL compatible
1 GB RAM · 1 GB disk
Full requirements

What is Mandemon?

This suspense visual novel takes place in a fictional Japan, where Mr. Kisaragi may have lost his humanity. You read the story and make choices along branching paths, piecing together clues about what happened.

For you if...

  • +you enjoy dark mysteries with a melancholic atmosphere

Not for you if...

  • −you want a long story rather than a short read

What players say

87% of 380 reviews are positive

Players praise the artwork, music, and voice acting. Common complaints concern artwork players believe is AI-generated, awkward English translation, and a plot some find dull.

Screenshots and trailer

Mandemon screenshot 1

Mandemon system requirements

Minimum: OpenGL compatible, 1 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Mandemon?

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Minimum

OS
Windows 7 SP1+
Processor
1Ghz
Graphics
OpenGL compatible card
Memory
1 GB RAM
Storage
1 GB available space

Does Mandemon have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Mandemon run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some in-game text is small and may be hard to read
  • All functionality is accessible with the default controller configuration
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS, Linux
Achievements
8
Steam features
Cloud saves, Family Sharing, Trading cards
Languages
Full audio: Japanese. Text only: English, Simplified Chinese, Traditional Chinese.

Does Mandemon 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 27, 2026. How to filter AI games on Steam

Tags

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