Developer Builds Minecraft Launcher with Claude Code

Project Overview
BlockHaven Launcher is a free, open-source Minecraft launcher built using Claude Code. The developer, who has 20+ years of software development experience, directed the entire development process without writing specifications or code themselves.
Technical Implementation
The launcher is built with:
- Electron for desktop application framework
- React for user interface
- TypeScript for type safety
- Microsoft OAuth for authentication
- Modrinth API integration for mod browsing
Key Features
- Microsoft authentication system
- Modrinth mod browsing capabilities
- Isolated multi-instance profiles
- Server auto-connect functionality
- Clean user interface
Development Workflow
The developer described the desired architecture and tech stack to Claude Code, which then:
- Wrote the design documents
- Implemented the code
- Utilized start-work skills/tooling for development
The developer's role was directing the process rather than writing specifications or code. The repository is fully public, allowing other developers to examine what Claude Code produces for a real desktop application.
Project Details
- No advertisements or subscriptions
- MIT licensed
- Free to use
- Open-source codebase
📖 Read the full source: r/ClaudeAI
👀 See Also

Using Claude as a Creative Director in a Sticker Generation Pipeline
A developer built a sticker app where Claude analyzes user-uploaded photos, generates nine sticker concepts, and writes detailed prompts for image models, resulting in personalized stickers rather than generic ones.

Claude Code Agent Orchestrator Architecture for Multi-Agent Systems
The Ultrathink team runs an AI-operated store where 6 Claude Code agents handle design, code, marketing, and operations. Their orchestrator agent coordinates work across specialized agents, handles failures, and ships code to production automatically.

Claude Time Travel Game Evolves from Prompt to Full Deployed System
A Reddit user describes evolving a time travel RPG prompt in Claude into a complex system over 40 days, adding YAML state files, 50+ NPCs, event triggers, and eventually deploying it on Fly with a database and custom MCP server for cross-platform access.

Using Telegram Topics for Unlimited Parallel AI Agent Conversations
A developer discovered that converting Telegram groups to forums enables each topic to function as an isolated session for AI agents, allowing unlimited parallel conversations without creating additional bots or tokens.