learn how the internet really works · codename: internet

SystemLore

Keep a service online as traffic climbs, regions fail, and you go viral at the worst moment. Start with one box. End at planet scale.

Campaign

15 production rounds, one box to senior-scale failure drills. Learn each pattern by surviving the outage that forced it.

ENDLESS

Keep It Alive

Procedural traffic until something breaks. DDoS, region outages, viral spikes. Earn cash, scale, hold the line.

SANDBOX

Design Studio

A free canvas with no scoreboard. Drag components in, wire them up, grade the design against the requirements.

NEW

Client Mode

A difficult client hands you a brief. Pull the real requirements out of the pitch, then architect it for a grade.

high score

0

best uptime

0s

lifetime served

0

contracts won

0

Interview survival path

Learn scaling by keeping one service alive under pressure.

Each level teaches one system-design move, then forces you to defend it with budget, latency, traffic, and failure pressure. Unlock the next concept only after the current design survives.

traffic

0

p99

—

uptime

100%

budget

$0

STABLE

0s

🏆

Achievement

Studio

Drag a component from the left onto the canvas. Switch to Wire to connect them.

Drag components here to start designing
Client → Load Balancer → App → Cache → Database

SystemLore

Campaign one box to planet scale

Learn scaling by keeping one service alive under pressure.

Client Mode