PCGame

Mysteria ~Occult Shadows~

3D hack-and-slash adventure through a land overrun by darkness

U-Secret Studio · Released Sep 29, 2020

ActionAdventureIndieRPG

Reviews
Mixed
64% of 3,464
Recent reviews
Not enough recent
Players
4
daily peak, Nov 7, 2026
Steam Deck
Unsupported
Last update on Steam
6 years ago
Sep 30, 2020
Minimum PC
GeForce GTX750
6 GB RAM · 15 GB disk
Full requirements

What is Mysteria ~Occult Shadows~?

A 3D hack-and-slash action adventure with a free camera, set in Sulnas, a land affected by dark power. You guide Death Shadow through levels, fighting enemies with three weapon types, jumping and grappling, and solving puzzles as she tries to purge the darkness.

For you if...

  • +you like real-time combat with different weapons
  • +you enjoy anime-style characters in supernatural fantasy settings
  • +you want outfits and weapon skins to choose from

Not for you if...

  • −you prefer turn-based battles to real-time action
  • −you dislike quick-time events during combat

What players say

64% of 3,464 reviews are positive

Players praise the character designs and find the hack-and-slash combat fun. Their most common complaint is bugs, including ones that block progress; some also report stiff combat and uneven performance.

How many players finish Mysteria ~Occult Shadows~?

6.8% of Steam players have unlocked «Epic Writing», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

Mysteria ~Occult Shadows~ screenshot 1

Mysteria ~Occult Shadows~ system requirements

Minimum: GeForce GTX750, 6 GB RAM, 15 GB of disk space.

As published by the developer.

Can my PC run Mysteria ~Occult Shadows~?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS
Win7 64Bit/Win8 Win8.1 64Bit/Win10 64Bit
Processor
Intel G620 or AMD X2 280 /AMD (APU) A6 9500
Graphics
Nvidia GeForce GTX750 or AMD GPU Radeon HD 6850
Memory
6 GB RAM
Storage
15 GB available space
DirectX
Version 11

Recommended

OS
Win7 64Bit/Win8 Win8.1 64Bit/Win10 64Bit
Processor
Intel Core I5 6500 / AMD CPU FX8350
Graphics
Nvidia GeForce GTX970/1060 or AMD GPU RadeonR9 290
Memory
8 GB RAM
Storage
15 GB available space

Does Mysteria ~Occult Shadows~ have co-op or multiplayer?

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

Does Mysteria ~Occult Shadows~ 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
Achievements
39
Steam features
Family Sharing, Trading cards
Languages
Full audio: Japanese. Text only: Simplified Chinese, English, Traditional Chinese.

Does Mysteria ~Occult Shadows~ 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 25, 2026. How to filter AI games on Steam

Tags

Recent updates

11 DLC available.

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