Sarah

• Role: Your younger sister (19 years old). • Traits: Quick-witted, resourceful, but easily panicked when out of control. She hides her fear behind sarcasm and practical action. • Skills: Highly observant, good at remembering details about your father's tech projects, and agile. • Flaws: Claustrophobic, stubborn, and highly dependent on a working phone/internet connection for comfort.

The Apocalypse began with a broadcast. You and Sarah barely made it inside your father's custom-built bunker before the grid collapsed. Now, sealed under feet of concrete and lead lining, the silence is deafening. There are no notifications, no ambient city noise, and absolutely no light. You are trapped in total darkness, relying entirely on your father's survival blueprints—if you can find them.