Mysteria ~Occult Shadows~

57KS
Released Sep 29, 2020by U-Secret StudioMixed(64% of 3.5K Steam reviews)Recent: 50% positive

Explore the land of Sulnas as the "Shadow of Death", a cat girl who's dauntless and fierce. The land is poisoned by secret power and desperately needs salvation. Can you save it from its sure demise or will you doom its fate like everyone else would?

Offers

What are keyshops?

Official stores

Official stores with direct support.

Steam
SteamOfficial
updated
Lowest price
$12.99
Shop now ↗

Keyshops

Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →

K4G
K4GKeyshop
updated

DLCs (11)

About Mysteria ~Occult Shadows~

Developed by indie group
"U-Secret Studio"
Kemomimi x Alternate Myth Style
3D Hack&Slash Game

Free Outfits!

10+ outfits, all available in FREE DLCs or in game

Cute maid, gorgeous Kimono, sexy lingerie, foxy JK.
And all kinds of weapon skins, all free!

The current version of the game is EA 4.0.
It now has a complete story, and would take you about 6-10 hours to get through.
If you encountered any bug, please contact [email protected] with screenshots.
We'll send you solutions, complete savedata and original wallpaper for compensation.


--------welcome to mysteria!----------


Guide Death Shadow through a world of wonders. 

The world Sulnas is heavily infested with dark power. 

Give yourself to the basic instincts and purge this world with light.



+◇ Snappy Controls, challenging in every way. Gets harder as the game progresses.
+◇ Quick Time Events! End your enemies with style.
+◇ Fully animated cut scenes and full Japanese VA.
+◇ Destroy your enemies with 3 kind of weapons
+◇ Well-designed combat system, make every cut deep to your enemies’ flesh and bone.
+◇ Grapple and jump, handle every battle as agile as a cat.
+◇ Puzzles and myths can tell a story on their own.
+◇ Over 40 unique enemies
+◇ 14 Levels! 10 Maps!
+◇ Full controller support
+◇ Fantastic Lighting + Stylized PBR rendering makes the game as real as your fantasies.
+◇ BGMs and music composed by the famous group project lights
+◇ Unique costumes and weapons!
+◇ Fully customized your own experience.
+◇ Customizable cut scenes: Try out our new portrait mode!























Explore the forbidden zones in the mainland, Surnas, discover the biggest secret hidden behind the Ferre civilization, or beat the evil creatures as you wish - you drive the power from the deepest darkness, and nothing constrains you.

《Mysteria: Occult Shadows》is a 3D, free-camera, real-time action adventure game developed by indie game studio formed by College students. This game features the Dark-Tale-Style scenes and Ferre characters design, with a variety of supernatural elements organized into the main and branch stories.

Q&A

Q:How to backup/delete the whole savedata?
A:The whole savedata is a .mss file under C:\Users\{Your User Name}\AppData\Local\Mysteria\Saved

Q:Why the frame rate in the ring like map is especially lower than others?
A:The system will load maps when in that map, the frame rate now depends on the I/O speed of your drive. If you stand still the frame rate will get higher.

Game details

Game details

Released
Platforms
Steam Deck
Unsupported
Steam rating
Mixed (64%)

Age ratings

IGRS 18DEJUS 12STEAM_GERMANY 16

Game modes

Languages

Mysteria ~Occult Shadows~ price history

Lowest tracked price: $2.59 (Jul 7, 2026) · current best: $12.99 across 2 stores.

Mysteria ~Occult Shadows~ player count & reviews

64% positive reviews all-time · 4 peak players in the last 30 days.

Mysteria ~Occult Shadows~ — frequently asked questions

Where can I buy Mysteria ~Occult Shadows~ at the cheapest price?

Right now the cheapest offer for Mysteria ~Occult Shadows~ is $12.99 at Steam. KingsPrice compares 2 offers from 2 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Mysteria ~Occult Shadows~ has ever been?

The lowest price KingsPrice has tracked for Mysteria ~Occult Shadows~ is $2.59 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play Mysteria ~Occult Shadows~?

Mysteria ~Occult Shadows~ peaked at 4 concurrent players on Steam in the last 30 days (highest on Jul 26, 2026). The player chart on this page updates daily.

Is it safe to buy a Mysteria ~Occult Shadows~ Steam key from a keyshop?

Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →

How can I get Mysteria ~Occult Shadows~ at a discount?

Create a free price alert on this page and KingsPrice will email you when Mysteria ~Occult Shadows~ drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Win7 64Bit/Win8 Win8.1 64Bit/Win10 64Bit
  • Processor: Intel G620 or AMD X2 280 /AMD (APU) A6 9500
  • Memory: 6 GB RAM
  • Graphics: Nvidia GeForce GTX750 or AMD GPU Radeon HD 6850
  • DirectX: Version 11
  • Storage: 15 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Win7 64Bit/Win8 Win8.1 64Bit/Win10 64Bit
  • Processor: Intel Core I5 6500 / AMD CPU FX8350
  • Memory: 8 GB RAM
  • Graphics: Nvidia GeForce GTX970/1060 or AMD GPU RadeonR9 290
  • Storage: 15 GB available space

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