All 94 skillsDesign and media10 of 10
stryx:game-dev
When making or fixing a game for the browser or Electron: the loop, controls, collisions, saves.
/stryx:game-devInside its piece: 13 specks, one for each file on its shelf. Its nine group-mates glow on the open book behind it. The light splits toward yellow, the band of Design and media.
In numbers
counted 2026-10-12 in the installed set- 11reference files
- 13files in the skill
- 132KB on disk
- 6chapters
Use it when
in the skill’s own wordsWhen making or fixing a game that runs in a browser or an Electron app
- a platformer
- shooter
- runner
- puzzle or arcade game on Canvas 2D
- Phaser or PixiJS
- A game loop, fixed timestep, or speed that changes with the monitor's refresh rate
- Keyboard, touch or gamepad controls and jump feel (coyote time, jump buffer)
- Collision, tile maps (Tiled, LDtk), objects passing through walls
- scenes
- object pools
- enemy state machines
- waves
- level data
- Game sound that will not start, effects and music during play
- Saves and high scores
- Frame drops or memory that climbs in play
- Input that fires twice after a restart
- Choosing a game engine or where game art comes from
- Packaging a game for the web, itch.io or Windows
Not for
another skill does it- 3D rendering with Three.js, R3F or Babylon.js→ stryx:3d-engines
- PBR textures→ stryx:3d-texturing
- Making sound or music files→ stryx:audio
- Making pictures→ stryx:image-gen
- The look of screens and menus→ stryx:design
- Speed work on an app that is not a game→ stryx:performance
On its shelf
13 files, 132 KB- references/11
- SKILL.md1
- evals/1
Inside the book
6 chapters, by title only- Step 0 (REQUIRED): read the versions, never recall them
- Pick the engine
- Art comes from real assets
- Core procedure
- Current-API rules (what old tutorials get wrong)
- Budgets (2D, per frame)
Works with
the skills it names most- stryx:3d-engines→When building or fixing live 3D inside an app: Three.js, React Three Fiber or Babylon.js.
- stryx:image-gen→When an AI image model must make or change a picture: a hero, a product shot, a texture.
- stryx:design→When making anything you see: a screen, website, dashboard, logo, icon set, slides or charts.
- stryx:3d-texturing→When making or exporting textures from Substance 3D Painter for the web or a game engine.
- stryx:ai-power→When you are not sure which skill fits, or you say "load aipower": it is the map of all skills.
- stryx:audio→When AI must speak, transcribe or make music: voiceovers, subtitles, sound effects.
Claude loads it by itself when the moment comes; by hand, type the line at the top. It comes with the whole set: Installs all 94 skills, 32 agents and the brain program as one set. The skill’s own text is private source and is not shown here.