A cute neon bullet-heaven roguelite. One cat, one catnip trip, ten thousand mice. Auto-fire weapons that mutate at Lv10 and Lv20, two bosses from the cat's dream, and a SSS combo to chase. Play the first chapter free — your wishlist unlocks the rest.

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Check out the full game

 

About This Demo

Try the first chapter of Star Purr for free.

You are a melancholic cat who ate a little too much catnip. Now fleets of space mice are pouring out of your dreams, and the only way out is to survive.

What's in the demo

  • The full first chapter: Persona. Waves, elites, shops and level-ups.

  • Two bosses: Admiral Mouse and the Cheese Castle.

  • 3 starting weapons and a growing arsenal of auto-fire weapons, components and items.

  • Every weapon mutates at Lv10 and Lv20 — the Red Dot grows claws, the Dream Koi learns the Yin-Yang Seal, the Reality Tear bites.

  • The SSS combo meter, 30 languages, full controller support.

What the full game adds

  • Three more chapters deeper into the cat's mind: Ego, Shadow and Self.

  • Six more bosses, including the Hypno Eye and the Twin Pole.

  • Ten ships with unique SPACE skills, more weapons, Gold Run endless mode, Steam achievements and leaderboards.

Demo progress does not carry over to the full game — it is a separate save, so play it as many times as you like.

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AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Artificial intelligence has been used in visual and music production, as well as to accelerate coding.

The development team has been responsible for final touches and decisions since the very beginning of the game's design.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64-bit (1809+)
    • Processor: Intel Core i3-4xxx / AMD FX-6xxx
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.3 or DirectX 11 (ANGLE) capable, 1 GB VRAM — Intel HD 4000 / GeForce GT 630 / Radeon HD 6450 class
    • Storage: 250 MB available space
    • Sound Card: DirectSound compatible audio device
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 / 11 64-bit
    • Processor: Intel Core i3-4xxx / AMD FX-6xxx
    • Memory: 8 GB RAM
    • Graphics: OpenGL 3.3 capable discrete card, 2 GB VRAM — GeForce GTX 750 / Radeon R7 260 class, or a modern iGPU (Iris Xe / Radeon 780M
    • Storage: 500 MB available space
    • Sound Card: Stereo output (the game has a stereo balance setting)
    Minimum:
    • OS: macOS 11 Big Sur — Apple Silicon: macOS 13 Ventura
    • Processor: Intel Core i5 (2015+) or Apple M1
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.3 (any Metal 2 capable Mac) — Intel Iris 6100 / Radeon Pro 555 / Apple M1 GPU
    • Storage: 1 GB available space
    • Additional Notes: Universal binary (x86_64 + arm64), no Rosetta needed; ad-hoc signed, installed through Steam
    Recommended:
    • OS: macOS 14 Sonoma or later
    • Processor: Apple M1 / M2 / M3 or Intel Core i7 (2018+)
    • Memory: 8 GB RAM
    • Graphics: apple M1 GPU or later / Radeon Pro 5500M
    • Storage: 1 GB available space
    • Additional Notes: Same controller support as Windows; the 1080p canvas scales on Retina displays
    Minimum:
    • OS: 64-bit distribution, glibc 2.28+ (Ubuntu 20.04 / SteamOS 3)
    • Processor: Dual-core 2.4 GHz
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.3 (Mesa 20+)
    • Storage: 1 GB available space
    • Additional Notes: X11 or Wayland (XWayland), PulseAudio/PipeWire
    Recommended:
    • OS: Ubuntu 22.04+ / SteamOS 3.5+
    • Processor: Quad-core 3.0 GHz+
    • Memory: 8 GB RAM
    • Graphics: OpenGL 3.3, discrete or modern iGPU
    • Storage: 1 GB available space
    • Additional Notes: X11 or Wayland (XWayland), PulseAudio/PipeWire
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