A responsive browser-based fishing RPG that recreates the Aurora Angling Guild experience. Cast from ten unique locations, unlock twelve rods and eleven bait types, and discover 700 unique fish with Gaussian weight rolls, rarity-driven payouts, and a flexible leveling curve.

Change your fishing location to completely re-theme the interface and access different fish pools:

• 10 Unique Locations – Each with distinct visual themes (gradients, accent colors) and atmospheric descriptions
• Seamless Theme Transitions – Background, accent colors, and UI elements adapt to match the current location
• Location-Specific Fish – Every biome hosts a unique set of 70 fish species across six rarity tiers

Realistic fishing mechanics powered by advanced algorithms:

• RNG-Based Rarity System – Luck stat influences catch probability across Common, Uncommon, Rare, Epic, Legendary, and Mythic tiers
• Secret Fish Encounters – Five hidden secret tiers with extremely rare, high-value fish
• Gaussian Weight Generation – Fish weights follow a bell curve distribution between minimum and maximum values for realistic variation
• Rod Capacity Checks – Each rod has a weight limit; exceeding it results in losing the catch
• Rarity-Weighted Pricing – Sale values scale based on both rarity tier and actual caught weight

Deep RPG mechanics with meaningful advancement:

• XP Per Catch – Gain experience from every successful catch (5 XP base, scaled by rarity)
• Dynamic Level Requirements – 1,000 XP for Level 1, then 5,000 × level (Levels 2-20), then 10,000 × level (21+)
• Stat Displays – Track coins, luck points, line speed percentage, and rod weight capacity in real-time
• Visual Progress Bar – XP progress displayed with current/next level indicators

Comprehensive equipment upgrade system:

• Rod Shop – 12 rods ranging from free Driftwood Rod to 75M coin Leviathan Crown Rod
  • Each rod provides: Luck bonus, Line Speed, and Weight Capacity
  • Example: Starcaller Rod (15,000 coins) → 100 luck, 320% speed, 625 KG capacity
• Bait Shop – 11 bait types spanning Common to Relic rarities
  • Each bait adds luck bonus to improve catch rates
  • Example: Aurora Bait (2.4M coins) → 415 luck bonus
• Equip System – Purchase gear and equip/unequip anytime via dual action buttons
• Starter Loadout – Begin with Driftwood Rod, Dewdrop Pebble Bait (10% luck), and 100 coins

Complete catch management system:

• Catch Tracking – Every fish caught appears in a scrollable table with name, rarity, weight, value, and location
• Selective Selling – Checkbox selection system to sell specific catches
• Bulk Liquidation – "Sell All" button to instantly convert entire inventory to coins
• Value Calculation – Dynamic pricing based on fish base value and weight ratio

Never lose your progress:

• Autosave – Game state automatically saved to LocalStorage every 15 seconds
• Manual Save – Click "Save" button for instant save confirmation
• Export System – Download your save file as JSON for backup
• Import System – Upload previously exported save files to restore progress
• Saved Data Includes – Location, level, XP, coins, inventory, equipped rod, equipped bait

Six standard tiers plus five secret tiers:

Luck System: Effective luck is calculated using logarithmic scaling to normalize gear values:

• Formula: effectiveLuck = Math.log10(1 + rodLuck + baitLuck) × 50
• Capped at 20,000 points maximum
• Higher luck increases probability of rarer catches

Fish weights use Gaussian distribution (Box-Muller transform):

• Each fish species has a minimum and maximum weight range
• Mean = (min + max) / 2
• Standard Deviation = (max - min) / 6
• Results in realistic bell-curve weight distribution
• Values clamped to stay within defined range

Progressive leveling system designed for long-term engagement:

Level 1: 1,000 XP required
Levels 2-20: 5,000 × level (10k, 15k, 20k... 100k)
Levels 21+: 10,000 × level (210k, 220k, 230k...)

XP rewards per catch:

• Base: 5 XP
• Multiplied by rarity weight (Common ×1, Rare ×5, Mythic ×20, etc.)

Fish value determined by two factors:

salePrice = baseValue × (weight / meanWeight)

Example:

• Aetherfin (Mythic): Base value 88,560 coins, weight range 8,000 lbs
• Catch weighing 10,000 lbs: 88,560 × (10,000 / 8,000) = 110,700 coins

1. Mistvale Lake
   Mist-veiled shallows with luminous reeds and echoing birdsong
   Theme: Cool blues (#8ff3ff accent)

2. Shalequartz Rapids
   Crystalline rapids and chiseled canyons that roar with wind
   Theme: Warm ambers (#ffc983 accent)

3. Emberhollow Lagoon
   Smouldering mangroves crackle above ember-lit water
   Theme: Volcanic oranges (#ff9b53 accent)

4. Verdant Expanse
   A bioluminescent marsh carpeted in moss and fireflies
   Theme: Vibrant greens (#7df0b5 accent)

5. Glacial Halo
   A mirrored lagoon of obsidian ice and geothermal steam
   Theme: Icy cyans (#c6f1ff accent)

6. Sapphire Depths
   Ocean trench carved in sapphire glass and cold starlight
   Theme: Deep blues (#4de0ff accent)

7. Starlit Abyss
   Endless nightwaters peppered with aurora constellations
   Theme: Cosmic purples (#d5a9ff accent)

8. Solstice Delta
   Radiant floodplains drenched in sunflare, mirrors, and lilies
   Theme: Golden yellows (#ffda66 accent)

9. Whispering Tidepool
   Moonlit pools cradle ancient shells, where the ocean hums forgotten lullabies
   Theme: Teal blues (#7dd3e8 accent)

10. Cinderbloom Marsh
    Volcanic soil births crimson blossoms that float on ashen streams
    Theme: Crimson reds (#ff6b6b accent)

• Title & Subtitle – Game branding with atmospheric tagline
• Save Panel – Manual save, export, and import buttons
• Player Stats Grid – Four stat cards showing Level, Coins, Luck, and Speed
• XP Progress Bar – Visual representation of progress to next level

1. Locations Panel
   Grid of clickable location cards with names and descriptions

2. Fishing Action Panel

   • Cast button with dynamic state (Fishing/Cast)
   • Catch preview display showing last caught fish
   • Line status indicator

3. Inventory Panel

   • Header with "Sell Selected" and "Sell All" buttons
   • Scrollable table with checkboxes for selective selling
   • Columns: Fish, Rarity, Weight (lbs), Value, Location

4. Rod Shop Panel
   List of all rods with names, stats, and Buy/Equip buttons

5. Bait Shop Panel
   List of all baits with rarity, stats, and Buy/Equip buttons

6. Activity Log
   Recent game events (catches, sales, level-ups) in reverse chronological order

• Modern web browser (Chrome 90+, Firefox 88+, Safari 14+, Edge 90+)
• No server or build tools required

1. Download or clone the project files
2. Ensure all three files are in the same directory:
   • index.html
   • styles.css
   • script.js
3. Open index.html in your browser

fishing-simulator/
├── index.html      # DOM structure and layout
├── styles.css      # Responsive design system with theme variables
└── script.js       # Game logic, state management, and persistence

Architecture:

• Vanilla JavaScript (ES6+) – No frameworks or dependencies
• CSS Variables for dynamic theming
• LocalStorage for persistence
• Single-page application architecture

Browser APIs Used:

• LocalStorage (save/load game state)
• File API (export/import save files)
• CSS Custom Properties (dynamic theming)

Key Functions:

• gaussianWeight() – Box-Muller transform for realistic weight distribution
• effectiveLuck() – Logarithmic scaling for balanced luck system
• attemptCatch() – RNG-based fishing logic with tier probabilities
• applyTheme() – Dynamic CSS variable injection for location themes
• saveGame() / loadGame() – LocalStorage persistence layer

• Focus on catching any fish to build XP and coins
• Upgrade to Emberfiber or Frostline Rod as soon as possible
• Common and Uncommon fish provide steady income

• Save for Starcaller Rod (15,000 coins) – major luck boost
• Invest in Moonpetal Swarm Bait to improve rare catch rates
• Start targeting Epic and Legendary fish for higher payouts

• Optimize luck stat with highest-tier rod + bait combinations
• Hunt for Mythic fish (8,000 lbs, 88,560 base value)
• Switch locations frequently to access different fish pools
• Look for secret fish – extremely rare but worth 78,000 - 2.3M coins

• Weight Management: Ensure your rod capacity exceeds the maximum weight of fish in your target location
• Location Rotation: Some locations may have more valuable rare fish – experiment to find optimal spots
• Selective Selling: Keep rare fish for potential future value increases (if system updates)
• Backup Strategy: Export save files before major gambling (hunting expensive fish)

• Achievements and milestones system
• Fishing tournaments with time limits
• Multiplayer leaderboards
• Seasonal events with exclusive fish
• Upgrade system for rod/bait enhancements
• Mini-games for bonus XP or coins

Design Inspiration: Aurora Angling Guild aesthetic
Font: Space Grotesk (Google Fonts)
Color Palette: Custom gradient system with 10 unique biome themes
Fish Database: 700 unique species across 10 locations

Enjoy the tranquility of the Mythic Waters. Cast your line and discover what lies beneath! 🎣