Aspyr Media today announced CSI: Crime Scene Investigation: Dark Motives (Mac) is now live on their Web site and available for preorder. “Become a forensic investigator, and join the CSI team. CSI: Dark Motives is the second game based on the hit television series, CSI: Crime Scene Investigation. Work in the field with the CSI cast, featuring the actors, atmosphere, voices and music from the show. Compare and match evidence in the improved crime lab, using examination techniques that will test your investigative skills.” The new game is priced at US$29.99.