RiskyBusiness

RISK

A browser-based implementation of the classic strategy game RISK, playable against AI opponents.

Features

• Local multiplayer & AI opponents — Play against up to 5 other players (human or AI)
• Three game phases — Reinforce, Attack, and Fortify each turn
• Card trading system — Earn cards when capturing territories, trade sets for army bonuses
• Continent bonuses — Control entire continents for extra armies
• Cryptographically secure dice rolls — Fair, unpredictable combat outcomes
• Combat log — See detailed battle results in real time
• Player status display — Track how many territories each player controls

How to Play

Setup

1. Open index.html in a browser
2. Select number of players (2-6)
3. Choose which players are human vs AI

Gameplay

Each turn has three phases:

Reinforce — Place new armies on your territories

• Earn armies based on: territories controlled ÷ 3 (min 3), plus continent bonuses
• Trade cards for bonus armies (sets of 3 matching or 1 of each)

Attack — Declare war on adjacent enemy territories

• Select your territory (2+ armies) → click enemy territory
• Roll dice to determine winners
• Move armies into captured territories
• Continue attacking or end phase

Fortify — Move armies between connected territories (optional)

• Select a territory → click another friendly connected territory
• Move any number of armies (leaving at least 1 behind)
• Skip to next player’s turn

Winning

Conquer all territories to dominate the world!

Architecture

• index.html — Game structure
• js/game.js — Main orchestrator
• js/flow.js — Game phases and turn management
• js/input.js — Player input and territory selection
• js/combat.js — Battle resolution and dice
• js/ai.js — AI player logic
• js/cards.js — Card trading system
• js/setup.js — Player configuration
• js/dialogs.js — Army movement dialogs
• js/state.js — Global game state
• js/data.js — Map data and constants
• js/map.js — SVG rendering
• js/ui.js — Header, logs, and UI updates