The brothers developed "Myst" after producing award-winning games for children. Drawing on childhood stories, the brothers spent months designing the Ages players would investigate. The name "Myst" came from Jules Verne's novel "The Mysterious Island". After "Riven" was released, Robyn left Cyan to pursue other projects, and Cyan began developing "Uru"; developers Presto Studios and Ubisoft created "Exile" and "Revelation" before Cyan returned to complete the series with "End of Ages". "Myst" and its sequels were critical and commercial successes, selling more than twelve million copies; the games drove sales of personal computers and CD-ROM drives as well as attracting casual gamers with its nonviolent, methodical gameplay. The video games' success has led to three published novels in addition to soundtracks, a comic series, and television and movie pitches.