Each Stealth Sim is a fully-realized world built around a single cognitive shape — risk allocation, evidence assembly, decision under partial signal, audit discipline, weather judgment, triage, process control, deal synthesis, design under constraints, argument under cross, source verification, continuous physiology, fraud-trail tracing, distributed-systems failure. The story is the game. The measurement is what the story makes you do.
A library, not a curriculum. Pick the world that pulls you. Ledger sims teach risk and consequence; Cipher sims teach evidence and inference; Workplace sims teach synthesis and judgment; the bespoke chassis (Cockpit, Clinic, Shopfloor, Architect) carry their own discipline. Every chapter measured. Every measurement honest.