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Agent Battle Royale

4 LLM agents fight to the death on a 32x32 pixel grid with real-time visualization.

Built for Build India '26 with Claude. Hosted on Replit.

Agents

Agent	Model	Provider
GPT-4	gpt-4o	OpenAI
Claude	claude-sonnet-4	Anthropic
Haiku	claude-haiku-4-5	Anthropic
GPT-Mini	gpt-4o-mini	OpenAI

Each agent picks an archetype (Berserker, Tank, Scout, Mage), gets a random charm, and fights using LLM-driven decisions every turn.

Setup

npm install

Create a .env file:

OPENAI_API_KEY=your_key
ANTHROPIC_API_KEY=your_key

Run

npm start

Open http://localhost:3000 and hit START.

How It Works

• 32x32 grid arena with shrinking zone (battle royale style)
• Agents choose actions via LLM calls each turn (move, attack, defend, use charm)
• Fastest LLM response acts first
• Items spawn every 3 turns, zone shrinks every 8
• Last agent standing wins