Arcane Tycoon — Heroes & Magic theme park tycoon game
Complete browser game inspired by OpenRCT2 with fantasy twist: - Custom roller coaster designer with physics-based ratings + on-ride POV - 10 animated rides, 7 shops, 16 scenery items, path network & guest AI - Heroes guild vs monster invasions (5 classes, XP/gear/bosses) - Magic spell system (8 spells), research tree, economy/marketing/loans - Day-night cycle, weather, park rating, awards, 4 scenarios - Save/load slots + autosave, procedural WebAudio SFX/music - Isometric canvas renderer, minimap, diagnostics overlay - Test suites: smoke(13), linkcheck, inputcheck, framecheck, rendercheck, flow
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# ✦ Arcane Tycoon — Heroes & Magic Theme Park
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A complete, publish-ready **browser theme-park tycoon game** inspired by the classic
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RollerCoaster Tycoon / OpenRCT2 formula — supercharged with **heroes, monsters and magic**.
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100% vanilla JavaScript + Canvas, zero dependencies, no build step.
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**▶ Play: http://127.0.0.1:8020**
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---
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## Features
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### 🎢 Park Building (the RCT heart)
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- Isometric canvas world (up to 64×64 tiles), pan / zoom / minimap
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- **Path network** with guest pathfinding (BFS), pavement & cobblestone
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- **10 prebuilt rides** — Unicorn Carousel, Sky Wheel, Gravity Spire drop tower,
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Fairy Swings, Haunted Crypt, River Sprite Flume, Dragonling Coaster,
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Portal Blasters, Broomstick Tower… all procedurally animated
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- **7 shops** with stock, pricing and needs-driven demand (food / drink / toilets!)
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- **16 scenery items** with beauty auras, lighting and mana properties
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- Terrain painting (grass / sand / rock / water) and bulldozer with refunds
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### 🎢 Custom Coaster Designer
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- Place a station next to a path, then lay pieces: straights, curves, slopes,
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steep drops and **loops** — chain lifts are automatic
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- Real-ish physics: energy conservation with friction → max speed, airtime,
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drops, inversions feed **Excitement / Intensity / Nausea ratings**
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- Track must form a closed circuit back to the station; live stats while building
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- **On-ride POV camera**: ride your own coaster first-person with speed lines, loops & day/night skies
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### 🧑🤝🧑 Guest Simulation
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- Individual guests with name, cash, thrill-preference, color
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- Needs AI: hunger, thirst, bladder, energy → they seek shops, benches, rides & exits
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- Thought bubbles, happiness dynamics, littering & vomit, fleeing from monsters
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### 🧑💼 Staff
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Handymen (clean), Mechanics (repair breakdowns), Guards (deter vandalism),
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Court Jesters (entertain queues). Monthly wages & ride running costs.
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### ⚔️ Heroes & Monster Invasions
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- Build the **Heroes Guild**, recruit Knights, Rangers, Battle Mages, Clerics, Paladins
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- Monsters (slimes, goblins, dire wolves, troll brutes, Void Wraith bosses) invade
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on a schedule; heroes auto-engage with melee/ranged/AoE/healer roles
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- XP, level-ups, gear tiers, revive timers, loot gold, damage numbers
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### ✨ Magic System
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- Mana pool that grows with Ley Pools, Rune Stones & Glowcap scenery
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- 8 spells: Sunburst, Joy Aura, Healing Light, Fortune Rain, Artificer's Haste
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(instant half-price building), Monster Bane, Warding Sigil, Transmutation
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### 🔬 Progression & Economy
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- Research lab: spend RP across 4 tracks to unlock rides, shops, spells, hero classes
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- Full finance: monthly close, wages, loans & interest, marketing campaigns
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- Park rating (0–999) from rides/happiness/cleanliness/beauty/facilities/safety
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- Quarterly awards, objectives per scenario, win/lose flow
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### 🌦️ World
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Day/night cycle with lamp glows · weather (sunny/cloudy/rain/storm) affecting
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attendance & mood · procedural WebAudio SFX + generative ambient music.
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### 💾 Quality of life
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3 save slots + monthly autosave (localStorage), JSON export/import,
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pause & 3 speeds, keyboard shortcuts, tooltips, tutorial/help dialog.
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## Scenarios
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| Scenario | Difficulty | Hook |
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|---|---|---|
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| Enchanted Meadows | Easy | Learn the ropes by a sleepy lake |
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| Dragonspine Pass | Medium | Rocky pass, early & frequent invasions |
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| Void Rift Crisis | Hard | Boss wraiths, aggressive schedule |
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| Sandbox Kingdom | Sandbox | $1M, everything unlocked |
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## Run it
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Any static file server works:
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```bash
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cd rollercoaster
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python3 -m http.server 8020
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# open http://127.0.0.1:8020
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```
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Or run the headless test-suite (no browser needed):
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```bash
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node tests/smoke.mjs # 13 integration tests over the full simulation
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```
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## Tech notes
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- Pure ES modules, Canvas 2D, WebAudio — no frameworks, no assets, ~6k LOC
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- Deterministic seeded map generation (Mulberry32), serializable RNG
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- Fixed-timestep simulation decoupled from rendering; entity caps keep 60 fps
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*Inspired by Chris Sawyer's classic & the OpenRCT2 project. All code original.*
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