Senua is the main character in the video game Hellblade: Senua's Sacrifice, developed by Ninja Theory. She is a Celtic warrior who embarks on a journey to rescue the soul of her deceased lover, Dillion, from the Norse underworld, known as Helheim. The game explores themes of mental health, particularly psychosis, as Senua experiences auditory and visual hallucinations throughout her quest. The character of Senua is inspired by historical and mythological elements, reflecting the rich culture of the Picts, an ancient people of Scotland. The game uses advanced technology to create realistic graphics and sound design, immersing players in Senua's emotional struggles and the challenges she faces in her journey.