Kronos Digital Entertainment was a U.S.–based video game developer founded by Stan Liu in 1992. They first garnered attention for their contract work for Sierra On-Line, most notably the groundbreaking intro sequence they created for King's Quest VI. They eventually began to develop original properties, beginning with their visually appealing early 3D fighting games, Criticom, Dark Rift and Cardinal Syn (referred to as the "Trilogy of Terror" by one gaming journalist).