Sierra Entertainment was a software label which publishes games from indie developers. Founded in 1979 by Ken and Roberta Williams, it developed and published a large variety of video games, including a number of best-selling games and series, for various platforms between 1980 and 2008. After 2004, Sierra developed no new games but worked strictly as a publishing label for their parent company Vivendi Games. In 2014, the brand was resurrected as an indie publisher by owners Activision Blizzard.