The Sims Online 2D — full game: CAS, build mode, needs, AI Mode (whim-driven autonomy), careers+chance cards, neighborhood AI sims, death/ghosts, meal tiers+sickness, paintings/novels, house parties, memories, weather; 38 headless tests green

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+# The Sims Online — 2D Web Edition 🏡
+
+A browser remake of The Sims / The Sims Online vibes in **plain JavaScript** (no frameworks, no build step) with an **isometric 2D canvas** renderer.
+
+## Run
+
+```bash
+python3 -m http.server 8080
+# open http://localhost:8080
+```
+
+Or any static file server. No dependencies, no bundler.
+
+## Features
+
+- **Create-A-Sim**: gender, skin/hair/outfit, 5 personality sliders, aspirations
+- **Isometric house building**: buy/build modes, walls, doors, windows, floor patterns
+- **Needs simulation**: hunger, energy, bladder, hygiene, fun, social, comfort, room
+- **🤖 AI Mode**: sims autonomously fulfill needs *and* pursue their own whims (whim-driven goals: promotion study, earning via art/novels, flirting, hosting…)
+- **Careers**: carpool commute, performance, promotions with skill requirements, chance cards
+- **Neighborhood**: AI households with personalities, visits, relationships that persist
+- **Death & ghosts**: electrocution/fire/starvation/old age → Grim Reaper, gravestones, night hauntings
+- **Food system**: groceries stock, 4 meal tiers gated by cooking skill, food poisoning that spreads
+- **Creativity money**: easel paintings, writing novels chapter by chapter
+- **House parties** with scored guests and aspiration rewards
+- **Whims/Wants**, memories diary, aging from baby to elder, romance/marriage/babies
+- Weather (rain/storms), kitchen fires, bills, burglars' cousins (pizza delivery), school for kids
+
+## Tests
+
+Headless harness (node:vm sandbox with stubbed DOM/canvas) — 38 scenario tests:
+
+```bash
+node test/harness.mjs
+```
+
+## Layout
+
+```
+index.html      shell
+css/style.css   all styling
+js/
+  core.js       constants, helpers, event bus
+  audio.js      WebAudio bleeps
+  data.js       object catalog, careers, meals, whims, socials
+  world.js      lot grid, pathfinding, objects
+  sims.js       Sim class, needs, skills
+  ai.js         autonomy, actions, parties, deaths, wants
+  render.js     isometric painter
+  ui.js         HUD, panels, modals
+  hood.js       neighborhood map screen
+  main.js       game loop, save/load, CAS flow
+test/harness.mjs headless test runner
+```