This simulation turns the bioethics doctrine of informed consent into a navigable 3D space: capacity, disclosure and voluntariness form three axes of a cube, a clinical encounter is a single point inside it, and a glowing corner shell marks the region where consent is ethically valid. Because the three conditions combine by a weakest-link rule rather than by averaging, a patient encounter with excellent disclosure and full voluntariness can still fail — and the simulation flags exactly which condition broke down — if the patient lacks decision-making capacity, exactly as a hospital ethics committee would assess it. Five real clinical presets (rushed disclosure, impaired capacity, coercion, unconscious trauma, textbook shared decision-making) plus an emergency-doctrine toggle let you explore how professional responsibility and patient autonomy trade off across realistic scenarios.