Nebula Nursery
Look after the little glowing critters! A keeper robot tends alien critters on a space
station — and this game is the showcase of the Ludea engine: it switches on (nearly)
every system the engine has.
▶ Play Nebula Nursery · for all ages (6+), in English and French
(flag switch on the home screen).
What it shows: care actions and a close-up "polish" scene (scrub the cosmic dust off a
critter's face), colour variants and happy faces, growth and eggs, riding with jumps in the
Gravity Park and on the Star Ring road, a shop with placeable decorations, the Glow Salon
menu, a wormhole that brings new critters, pick-up → drop-off deliveries chased by drones,
rare critters with stats from the Hatchery, and a pseudo-3D race against five rivals —
all described in game.config.js, with no game code.
Make your own game
Nebula is built on a reusable engine. To make your game, start from the template
ludea-ai/game-engine (Use this template,
then run /new-game in Claude Code) — it gives you the engine plus a small starter game to
grow. Read Nebula's game.config.js when you want to see how a feature is wired; the full
field-by-field schema is in ENGINE.md.
More games made with the engine: ludea.ai.
How this repo is organised
index.html · style.css · game.config.js · game.i18n.js the game (shell, theme, config, French texts)
engine.js · engine.css · ENGINE.md · vendor/ the engine layer (identical in every Ludea repo)
assets/ (img · sheet · ui · CREDITS.md) generated art (CC0)
tools/art/nebula.cjs ALL the art, as parametric SVG → PNG/WebP
.claude/skills/ (+ _shared/ tooling) Claude Code skills, probes, art tooling
.github/workflows/deploy.yml GitHub Pages deploy on every push to main
Engine work is developed and tested here first (Nebula exercises every system), then copied
into the template and the other games with the sync-engine skill.
Run & test locally
bash .claude/skills/_shared/serve.sh 8099 # open http://localhost:8099/
OUT=/tmp/shots node .claude/skills/_shared/playtest.cjs --port 8099 --viewport 390x844 \
--probe .claude/skills/_shared/probes/tour.cjs
Re-render the art after editing tools/art/nebula.cjs:
node .claude/skills/_shared/render-svg.cjs tools/art/nebula.cjs [--only key].
Credits
All textures and icons are generated (CC0) and specific to Nebula's universe. Phaser 3 is
MIT; Fredoka is OFL. See assets/CREDITS.md.
