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System DesignData Structures
Learn by Doing, Not Reading

Master Engineering through
Interactive Simulations

Stop memorizing. Start building. Put your knowledge to the test with our gamified architect challenges and algorithm puzzles.

Gamified Learning Tracks

Interactive scenarios designed to help you think like a senior engineer.

System Architect

Design and scale a startup from scratch. Manage budget, latency, and reliability to handle millions of users.

Play Level 1

Algorithm Arena

Master pointers and memory. Sort fragmented arrays and connect broken linked lists in our interactive lab.

Enter Arena

Deep-Dive Topic Explorer

Each topic includes detailed text explanations and interactive live demonstrations.

Visual System Design
Scalability, Reliability, and Architecture
  • Interactive Traffic Flow Demos
  • Load Balancing & Caching
  • Database Sharding & Replication
  • Real-time Latency Visualizers
interactive Algorithms
Data Manipulation and Memory Visuals
  • Live Node Manipulation
  • Arrays, Linked Lists, & Trees
  • Graph Traversal Visualizations
  • Memory Allocation Simulators