A first-person survival sandbox game where you explore a post-apocalyptic world, scavenge resources, craft production chains, and keep your train base running against all odds.
Your voice is your weapon. Speak to survive, or stay silent to stay alive. Repay your debt to the Whisper Protocol by finding words to unlock four voice-sealed locks. But monsters are listening, use vocal bonds to fight back, or betray your allies to save yourself.
