Why Hollow Knight Bet on Unity and PlayMaker: The Visual-Scripting Shortcut Behind a 15-Million-Copy Metroidvania

Why 3-person Team Cherry built 15M-copy Hollow Knight on Unity + PlayMaker visual scripting instead of custom tech, what FSMs gained and cost for 30+ bosses, and what indie devs can steal — with original org-chart-compiler analysis and browser trainers.