Fourfold is a real-time, two-player Connect Four game that turns a simple invite link into a friendly rivalry. Create a room, share its code with a friend, and play from separate devices with automatic board updates. Built-in turn validation, win detection, and rematches keep the competition flowing. 1. Enter your name and click Create a room. 2. Share the room code or invite link with a friend. 3. Your friend enters their name and clicks Join room. 4. Take turns clicking an arrow above a column
“What surprised me was that making the board playable was the easy part—keeping two players in sync was the real challenge. Handling simultaneous moves, enforcing turns, and agreeing on rematches showed me how much coordination sits behind a simple multiplayer game.”