Formerly known as Tsunami Productions, Ybarra Productions was a game development studio founded by Joe Ybarra, active from 1990 to 1996. It is best known for Alien Legacy (1994), but was also notable for producing Shadow of Yserbius, a graphical multi-user dungeon for The Sierra Network online service that ran from 1991 to 1998. The Shadow of Yserbius (1993) series are single-player versions of the now-defunct online game, Ybarra Productions was based in Cupertino, California.
