Runtime

Master the core engineering concepts every software engineer is expected to know — system design, distributed systems, databases, security, networking, and DevOps — by playing a story-driven mobile game. RUNTIME is a narrative learning game for aspiring software engineers, computer science students, junior developers, and tech enthusiasts who want to truly understand how the software behind the modern internet actually works — without slogging through textbooks or 10-hour YouTube playlists. Every concept lives inside a scenario: a late-night production outage, a scaling crisis, a security breach, a schema migration gone wrong. You don't read about load balancing — you play through a traffic spike and feel what breaks. That's how the expertise sticks. You play a junior engineer at a fictional tech company. As a corporate mystery unfolds around you, you solve the same problems real SREs, backend engineers, and system architects face every day — in interactive minigames, branching dialogues, and progressively deeper knowledge cards. WHAT'S INSIDE: ▸ Two complete worlds (32 chapters) • The Architect's City — system architecture & distributed systems • Ghost Protocol — databases, transactions & data management ▸ Three more worlds coming soon • Operating Systems • Generative AI • Ethical Hacking ▸ 12+ interactive minigames • Network Packet Router (CDN + latency) • Scale City (autoscaling & SLA tradeoffs) • JWT Decoder (security & tampering detection) • CAP Theorem Triangle (consistency vs availability) • Query Optimizer (SQL performance) • Cache Eviction (LRU vs LFU strategy) • Circuit Breaker & Rate Limiter config • Docker & Kubernetes YAML builder • Storage Selector (SQL vs NoSQL) • Architecture Assembler • Grafana dashboard reading • …and more ▸ 140+ knowledge cards across three learning layers • Layer 1: quick intro — grasp the concept in 30 seconds • Layer 2: deep dive — technical detail, markdown & embedded videos • Layer 3: real-world impact — why it matters at scale ▸ Story-driven gameplay • Branching dialogue with real consequences • 8 voiced characters across two worlds • Corporate thriller narrative grounded in real engineering problems ▸ Gamification that actually teaches • XP for correct decisions, partial credit for good-but-not-perfect answers • Star-based chapter unlocks (must earn ≥2 stars to progress) • Mastery badges — rendered as shareable PNGs • Free-play Practice mode for pure skill building • Hint system (5 per hour) ▸ Built for real life • Plays offline — syncs when you're back online • Landscape-immersive UI • Clean, cyberpunk-inspired visual design WHO IT'S FOR: • CS & engineering students preparing for placements or internships • Self-taught developers leveling up on backend fundamentals • Junior engineers ramping up on distributed systems • Anyone prepping for system design interviews at FAANG/MAANG or top product companies • Curious tech enthusiasts who want to understand how the internet actually works WHAT YOU'LL ACTUALLY LEARN: Load balancing • CDNs • Autoscaling • Caching strategies • Rate limiting • Circuit breakers • CAP theorem • Database indexing & query optimization • Transaction isolation levels • SQL vs NoSQL tradeoffs • JWTs & authentication • Docker & Kubernetes basics • Message queues • Microservices patterns • Observability & monitoring Every concept is taught inside a situation — not as a definition to memorize, but as a decision you have to make under pressure, with stakes. BUILT BY A STUDENT, FOR STUDENTS RUNTIME was built by a Computer Engineering student at Sardar Patel Institute of Technology (SPIT), Mumbai — the learning tool I wished existed while grinding system design prep. If you've ever closed a 40-minute YouTube lecture and realized you didn't absorb anything — this is for you. Download RUNTIME. Play a chapter. Learn something that'll show up in your next interview.