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Simulation run on this device. Scenario values are not sent anywhere — the engine is fully local.

system design game · free

CAP Partition Game

Play both sides of the tradeoff and feel why 'CA' isn't on the menu.

Partition hits: serve possibly-stale reads or refuse them?

Engine 1.0.0 · game
1
1
3
ms
1200
Mode under partition
AP — serve stale/available
Write latency floor
25 ms
Replicas
3
Partition
yes

Pick C or A when P happens — you cannot keep both.

prefer availability

Method

  • Deterministic local model of the mechanism — knobs recompute outputs instantly with no network.
  • Numbers are teaching approximations, not production capacity guarantees.