PCGame

Hifuu Nightmare Diary ~ Violet Detector.

Bullet hell shooting where your camera clears incoming enemy fire

上海アリス幻樂団 · Published by Mediascape Co., Ltd. · Released Sep 4, 2018

ActionIndie

Reviews
Mostly Positive
76% of 318
Recent reviews
Not enough recent
Players
0
daily peak, Oct 29, 2026
Steam Deck
Unsupported
Last update on Steam
8 years ago
Aug 14, 2018
Minimum PC
Shader Model 2.0 compatib…
1 GB RAM · 0.6 GB disk
Full requirements

What is Hifuu Nightmare Diary ~ Violet Detector. ?

This single-player, 2D bullet hell shooter follows Sumireko Usami as her dream visits to Gensokyo turn into recurring nightmares. You choose short stages, dodge bullets, and defeat bosses with shots and photographs; clearing a stage requires taking at least one photo. Getting hit means restarting the scene, but you don't need to clear every scene to advance the story.

For you if...

  • +you enjoy mastering difficult patterns through repeated attempts

Not for you if...

  • −you prefer forgiving action without precise movement demands

What players say

76% of 318 reviews are positive

Some players enjoy the teleport mechanic. Recurring complaints focus on awkward controls, particularly the teleport command.

Screenshots and trailer

Hifuu Nightmare Diary ~ Violet Detector.  screenshot 1

Hifuu Nightmare Diary ~ Violet Detector. system requirements

Minimum: Shader Model 2.0 compatib…, 1 GB RAM, 0.6 GB of disk space.

As published by the developer.

Can my PC run Hifuu Nightmare Diary ~ Violet Detector. ?

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Minimum

OS
Windows 7/8/10
Processor
Core 2 Duo or faster
Graphics
Shader Model 2.0 compatible
Memory
1024 MB RAM
Storage
600 MB available space
DirectX
Version 9.0c

Recommended

Memory
2048 MB RAM
Notes
Controller recommended

Does Hifuu Nightmare Diary ~ Violet Detector. have co-op or multiplayer?

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

Does Hifuu Nightmare Diary ~ Violet Detector. run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

  • Not supported on SteamOS

PC version details

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

Does Hifuu Nightmare Diary ~ Violet Detector. 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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