Game Developers Choice Online Awards plans to honor the good doctor this October. The Online Game Legend Award stemmed from a pool of open nominations and was chosen by the GDC Online Awards advisory committee. They specify Bartle's co-creation of MUDs and his 2003 book Designing Virtual Worlds as the key reasons why he deserves to be named a capital-L Legend.
Bartle isn't the only one due for a special award, however. Ultima Online will be inducted into their Hall of Fame as "a specific online game that has resulted in the long-term advancement of the medium, pioneering major shifts in online game development and games as a whole."
The full awards ceremony will take place on October 7th, and will include a number of other categories including Best Online Game Design and Best New Online Game. You can eyeball the full details over at GDC Online Awards' website.