Diamond Cat Studio has officially announced Ylem’s Cat, an upcoming action-adventure game for PC. The title, which is currently available to view on Steam, centers on the relationship between a girl named Molly and a mysterious, shape-shifting cat named Mio.
In Ylem’s Cat, players follow Molly as she searches for her missing mother across a dying planet. The gameplay emphasizes a bond between the two protagonists, featuring combat and exploration mechanics that rely on the cat's unique abilities. According to the developer, players must observe the rules of the world—such as the pulse of Ylem and the movements of hostile Sentinels—to survive.
Gameplay and Mechanics
The core of the experience involves working in tandem with Mio. While the cat can solve specific environmental puzzles, it also maintains its own moods and habits, meaning player coordination with the companion is essential. Combat is described as "knowledge-driven," requiring players to learn how the world functions rather than relying solely on traditional action mechanics.
Quick Facts
- Developer: Diamond Cat Studio
- Platform: PC (via Steam)
- Release Date: Not yet announced
- Key Gameplay Focus: Bond-based exploration and knowledge-driven combat
As of August 2026, there is no set release date for the project. Interested players can find the game listed on Steam to track further updates.

