The challenge
The challenge
Keep drawings, guesses, scores, and room events synchronized across several players while handling slow networks, disconnects, and rejoining.
Project case study
A real-time multiplayer drawing game.
Guess Drawing is a multiplayer game where people take turns drawing and guessing in public or private rooms. It combines a responsive mobile experience with a backend responsible for live state and player connections.
Get it on Google Play ↗
Guess DrawingDraw · Guess · Play togetherThe engineering approach
The engineering approach
Clear boundaries between native clients, REST APIs, and WebSocket channels. The server owns room truth while clients render changes as soon as events arrive.
From source to production
From source to production
Spring Boot and MySQL run behind Caddy in Docker on AWS, with HTTPS, secure WebSockets, health checks, and a rollback-aware deployment flow.
Technical architecture
From the first touch to a shared event
Android & iOS
Native experiences for drawing, guessing, voice, and room management.
Spring Boot
Game rules, sessions, REST APIs, and real-time event coordination.
WebSockets
Low-latency drawing strokes, guesses, and room events.
Cloud infrastructure
Docker, MySQL, Caddy, and TLS on AWS.
What the project demonstrates