Complex sentence: Batten was also the head of the Gleemax project; on July 28,2008, Wizards announced that they were shutting down Gleemax to concentrate on "Dungeons & Dragons Insider".
Split into simpler sentences: Batten was also the head of the Gleemax project. On July 28,2008, Wizards announced that they were shutting down Gleemax to concentrate on "Dungeons & Dragons Insider".