Morimens

In-app purchases
4.3
5.43K reviews
100K+
Downloads
Content rating
Teen
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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.
Updated on
Apr 12, 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

4.4
5.1K reviews
Vernon Eubank
April 8, 2026
I love this game. The cons just don't hold a candle to the pros for me to give it less than 5 stars. The English localization is a work in progress. Game is amazingly, brutally difficult. Pull rates are rough when you're going for the limited banners, but it's not a problem pulling the standard stuff. The different unique mechanics are so much fun. If you like deck building RPGs and gachas, try it. Best of it's kind that I've played.
Did you find this helpful?
Qookka Games
April 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~
Kevin S
April 8, 2026
QoL should be the games focus. After seeing this constantly on steam I decided to try it out. 3 days in and I can't be bothered. 20 minutes on auto to clear a single stage, forced to use a system called "engrave" every time you clear a stage. Character progression is brickwalled due to stage progression. No one should have to spend an hour+ clearing a chapter with 12+ stages just to advance their roster 10 levels.
2 people found this review helpful
Did you find this helpful?
Qookka Games
April 8, 2026
Dear keeper, we are sorry that we failed to bring you a good experience. We attach great importance to the suggestions and opinions of players. If you need feedback during the game experience, you can contact us through [Settings] - [Account] - [Contact Customer Service]. Thank you for your support and wish you a happy life~
Aaron Kahumoku (theaaronhereisfresh)
January 14, 2026
Absolutely great game! If you enjoy games that can emerse you into another world, strategy and rng mechanics, this game is the tops. The only thing I wish this game had is a narrated storyline. Don't sleep on this game. If your on the fence, know that the developers are very generous with rewards, the game can be challenging if you enjoy using your brain, and the story can be very engaging. There's so much more to say but I've gotta say that I enjoy this much more than Chaos Zero.
8 people found this review helpful
Did you find this helpful?
Qookka Games
January 14, 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。