The black cat is loose in the wilds — can you catch it before it disappears into the night?
This is a fast, skill-based exploration game where sharp eyes and quick reflexes will determine your fate.
Desktop
- Move with WASD
- Rotate with Q / E
- Look around with your mouse
Mobile
- Use the left joystick to move
- Use the right joystick to rotate
HUD
- Close with X, H, or Esc
Look
- Touch-drag to freely look around
Legends say a mysterious black cat roams these lands.
Some believe it brings fortune, others whisper it’s a shadow of bad luck.
Your task: find it, follow it, and catch it — but beware...
the cat is clever, fast, and always one step ahead.
This game was built during a full month of focused work — I even took vacation time just to dive in.
The main goals were to learn Vanilla JS for WebXR and to practice Git branch merging,
using a structure of FEATURE → MODULE → SOLUTION for cleaner development.
- Languages & APIs: Vanilla JS, WebGL2, WebAudio, OpenXR
- Packaging: 7zip (PPMd algorithm)
- MMO mode (via Cloudflare relay server)
- Cross-platform: VR, mobile, and desktop
- Unified input system (raytraced controls)
- Adaptive music system
- Wind simulation (affecting sound, grass, and plants)
- Sky shader → Iñigo Quílez: Derivative
- Lindenmayer-system plants shader → Shadertoy example
- GitHub Repo → JS13kGame2025
- My First Website → justinas-gibas.github.io/MyFistWebsite
- Projects Showcase → Explore My Work
- Twitch → twitch.tv/justgibas
- LinkedIn → linkedin.com/in/justinas-gibas
🐾