AI: THE SOMNIUM FILES - nirvanA Initiative is an adventure game developed by Spike Chunsoft. The game is available on Xbox Series X|S and is a full version with no in-app purchases.

The game revolves around Special Agent Mizuki and her AI partner Aiba, who are tasked to solve the Half Body serial killings. The story is a sequel to the critically acclaimed AI: The Somnium Files. Six years ago, only the right half of a corpse was found under mysterious circumstances, and the left half was never found. Recently, the left half was discovered completely fresh with no signs of decay, as if the victim was alive until just recently. The game is an exciting adventure that will keep you engaged for hours as you help Mizuki and Aiba solve the bizarre Half Body serial killings.