Morimens

In-app purchases
6.99K reviews
Content rating
Teen
100K+
Downloads
Content rating
Teen
Violence, Blood, Use of Alcohol
In-Game Purchases (Includes Random Items)
Learn more
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About this game

Keeper of Secrets, congratulations on entering Mythag University.

This world is dying.

Hundreds of years ago, Dissolution came with no signs. Life, consciousness, memories...All the existence that humans once gave meaning to were erased by Dissolution.

Yet people were kept in the dark.
Confronted with this hidden and indescribable disaster, Mythag University, as one of the few who is well aware of this fact, is determined to fight against this vast crisis by waking up the power that shares the same source of the disaster and connecting the humanoid weapons that are on the edge of insanity.

If everything is bound to be forgotten, are you willing to testify that the world has once existed? Will you carry the secret on your back and walk on by?
In the witness of the gravestone, may the Silver Key guide your way.

Welcome aboard, Keeper of Secrets.

In this misty British-style world, you shall carry the secret of the times for the sake of all life.
In the crisis of Dissolution, grace and power will be with you everywhere you go.
Arrange your team, and wake the ones who share the same source of disasters.
Go through Rougelite game levels, and uncover the unspeakable truth with your strategy.
Experience this grand story with multiple chapters. You will find the trueness in this broken world.
Lovecraftian Deck-building Game
Updated on
Oct 26, 2026
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Personal info, Financial info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

6.51K reviews
Ollie :3
November 2, 2026
10/10 game. Updates are amazing, character building, THE STORY, and even the gachas. Gachas are entirely f2p, limited characters aren't impossible to get like other games, and the story is amazing. I've been playing this game and it's been nothing short of awesome.
Did you find this helpful?
QOOKKA GAMES
November 3, 2026
Dear Keeper, thank you for your love and support for the game. We will continue to improve the content and gameplay to enhance your experience. If you have any questions or suggestions, please contact us via 【Settings】-【Account】-【Contact Customer Service】. Thank you again for your support, and have a great day~
WasabiSure
November 8, 2026
As a soulsborne enjoyer, this game offered one of the best storytelling, word and atmosphere, character story and lore. Really capturing the Lovecraft aspect at the best. Overall, I'm happy and enjoying the game. DON'T SKIP THE STORY BECAUSE IT'S ACTUALLY GOOD
Did you find this helpful?
QOOKKA GAMES
November 8, 2026
Dear Keeper, thank you for your love and support for the game. We will continue to improve the content and gameplay to enhance your experience. If you have any questions or suggestions, please contact us via 【Settings】-【Account】-【Contact Customer Service】. Thank you again for your support, and have a great day~
sorsara
November 2, 2026
I've never enjoyed card or turn based games except honkai star rail but this game... damn it got me hooked! I play it on steam everyday and occasionally on phone. I also enjoy the story and the character designs are just so beautiful! I love this game❤️
Did you find this helpful?
QOOKKA GAMES
November 2, 2026
Dear Keeper, thank you for your love and support for the game. We will continue to improve the content and gameplay to enhance your experience. If you have any questions or suggestions, please contact us via 【Settings】-【Account】-【Contact Customer Service】. Thank you again for your support, and have a great day~