Pick a game
Built from scratch, no signup, share a room code. The simulations are the engineering pieces — circuit breakers, RPKI, gossip anti-entropy.
- 8games
- 6multiplayer
- Yjs+ firebase rtdb
Engineering simulations
Distributed systems, networking, SRE — playable from scratch.
- NEW
Microservice Meltdown
A seeded incident lab on a 5-service graph. Diagnose bottlenecks, trace requests, replay decisions and compare recovery against a baseline.
SoloMultiplayerReplayObservability Gossip Protocol Virus
Anti-entropy gossip across a 10-node network. Propagator spreads TRUTH; Attacker forges Byzantine FALSE. Version vectors, three topologies.
MultiplayerDistributedCRDTByzantineBGP Routing Hijack
Two ISPs on a 9-AS simulated internet. AS-path prepend, deploy RPKI ROAs, hijack a sub-prefix. Pakistan Telecom 2008 replay included.
MultiplayerNetworkingRPKICTF- NEW
Terminal Escape
14 Unix investigations, including a CI artifact leak that requires evidence and containment. JSON queries, permissions, a reactive defender, and downloadable incident reports.
SoloMultiplayerCTFReal shell
Multiplayer classics
Pair up over a shared room code. Yjs + Firebase RTDB.
Solo arcade
No partner needed. Quick fun.