Learn by building

Master distributed systems
by designing them

A visual sandbox game where you build architectures, run simulations, and learn why systems fail — and how to fix them.

Visual Architecture Builder

Drag-and-drop servers, databases, caches, and load balancers onto a live canvas.

Real Simulation

M/M/1 queue math drives realistic latency, error rates, and cost — fully in the browser.

Guided Challenges

Pass SLA targets, stay within budget. Multiple valid solutions, just like the real world.