 Wizards announced the purchase of TSR , the cash @-@ strapped makers of Dungeons & Dragons on April 10 , 1997 . Wizards acquired TSR and Five Rings Publishing Group for $ 25 million . Many of the creative and professional staff of TSR relocated from Wisconsin to the Renton area . Wizards used TSR as a brand name for a while , then retired it , allowing the TSR trademarks to expire . Between 1997 and 1999 , the company spun off several well @-@ loved but poorly selling campaign settings ( including Planescape , Dark Sun and Spelljammer ) to fan groups , focusing business primarily on the more profitable Greyhawk and Forgotten Realms lines . 
