Sierra Entertainment
Sierra Entertainment is a american publisher and developer founded in 1979.
This company is responsible for games like Thexder.
Founded in: 1979
Also known as: On-Line Systems, Sierra On-Line
Sierra Entertainment is a american publisher and developer founded in 1979.
This company is responsible for games like Thexder.
Founded in: 1979
Also known as: On-Line Systems, Sierra On-Line
