Game Overview

An innovative evolution of chess where you command and expand a white army to survive endless waves of enemies on an infinite board. Start with a compact 3×3 formation and grow via captures and smart resource management.

Core Features

Camera & Viewport

• Zoomable viewport (default 25×25), cursor-centered zoom.
• Responsive tile sizing for any resolution.
• Camera controls: Center on King, touch-drag pan on mobile.

Enhanced Starting Formation

Visual Enhancements

• Colored borders: Cyan (you) and Red (enemies)
• Selection highlighting and valid-move indicators
• Moved-this-turn highlighting

Dynamic Army Management

• Army size scales with number of Kings owned
• Per-King limits: 8 Pawns, 2 Knights, 2 Bishops, 2 Rooks, 1 Queen
• Live piece counts and strategic expansion via new Kings

Advanced Shop System

• Earn points by defeating enemies
• Dynamic pricing: Pawn 2, Knight 6, Bishop 6, Rook 10, Queen 18, King 24
• Inventory display, limit enforcement, click-to-place purchased pieces

Enemy AI, Waves, and Systems

• Progressive waves every 3 rounds, scaling difficulty
• AI prioritizes targets and tactical positioning; vision-aware behavior
• Balanced spawning and smart positioning
• Fog of War (optional): King 4, Knight 5, Q/R/B 3, Pawn 2 sight
• Undo within the current turn
• Turn-based: move all pieces before enemy response
• Point streaks for consecutive captures

Game Mechanics Deep Dive

Turn Structure

1. Player Phase: select and move each piece once
2. Validation: chess rules enforced; invalid moves blocked
3. Enemy Phase: AI executes optimal moves
4. Wave Spawning: new enemies every 3 rounds

Enemy Wave Progression

• Wave 1 (R1–3): Pawns
• Wave 2 (R4–6): Pawns + Knights
• Wave 3 (R7–9): Pawns + Knights + Bishops
• Wave 4 (R10–12): add Rooks
• Wave 5+ (R13+): all types including Queens

Victory & Scoring

• Survival focus; no fixed win condition
• Game Over when your last King is captured
• Score: rounds survived, enemies defeated, streaks

Controls & Interface

Desktop

• Mouse Click: select/move
• Right Click: deselect
• Space: end turn
• Mouse Wheel: zoom toward cursor

Mobile/Touch

• Tap: select/move
• Long-press: deselect
• Drag: pan
• Pinch: zoom
• Double-tap: center view
• End Turn button

Sidebar

• Stats: rounds, enemies defeated, threats
• Army status: counts vs. limits
• Points & streaks; purchases
• Actions: end turn, undo, shop, camera
• Game log: color-coded events

Shop

• Point display and catalog with costs
• Limit indicators and disabled states

Strategic Gameplay

Early Game

• Maintain formation and mutual support
• Protect your King
• Earn points via safe captures
• Choose when to expand vs. save for Kings

Mid Game

• Scale with additional Kings
• Balance composition by threat
• Control territory with long-range pieces
• Leverage fog-of-war positioning

Advanced

• Multi-King redundancy
• Economy: immediate needs vs. long-term
• Adapt to wave types
• Master positioning and formations

Technical Architecture

File Structure

• index.html: UI & styles
• game.js: game logic
• README.md: documentation

Getting Started

1. Open index.html in a modern browser
2. Click a piece to see green valid moves
3. Click a highlighted square to move
4. Move all pieces, then End Turn (or Space)
5. Observe enemy moves and plan ahead
6. Defeat enemies to earn points, spend in shop
7. Survive as long as possible!

Achievements & Scoring

• Metrics: rounds, enemies defeated, streaks, pieces purchased, army size
• Milestones: Round 10 (first escalation), Round 20 (multi-type waves), Round 30+ (max difficulty)

Future Roadmap

• Save/Load, Achievements, Piece promotion
• Environmental hazards, Multiplayer, Custom scenarios
• Statistics dashboard
• WebGL effects, Audio, Mobile optimizations, Accessibility

Development Notes

• Single-file logic in game.js
• Event-driven design
• Scalable AI modules
• Responsive UI for all sizes
• Performance: vision caching, viewport culling, memory and input optimizations

Command your forces, expand your empire, and survive the endless siege! ⚔️👑