HBO's fantasy series "Game of Thrones" received 13 Primetime Emmy Award nominations, including Outstanding Drama Series.

Nominations for the 63rd annual award show were announced Thursday morning, with winners set to be revealed Sept. 18 on Fox.

"Game of Thrones" featured a number of strong performances from its cast this season, but only Peter Dinklage was recognized; he landed a Supporting Actor in a Drama Series nod for his role as the cunning dwarf Tyrion Lannister.

Behind the scenes, executive producers David Benioff and Dan Weiss earned a Writing in a Drama Series nomination for their work on the episode “Baelor.” And Timothy van Patten captured a Directing in a Drama Series nod for the pilot episode “Winter is Coming.”

Also scoring nominations:

--Casting in a Drama Series: Nina Gold and Robert Sterne

--Costumes for a Drama Series: Michelle Clapton and Rachael Webb-Crozier for “The Pointy End”

--Hairstyling in a Single-Camera Series: Kevin Alexander and Candice Banks for “A Golden Crown”

--Main Title Design: Angus Wall, Robert Feng, Kirk H. Shintani and Hameed Shaukat

--Special Visual effects for a Series: Adam McInnes, Angela Barson, Lucy Ainsworth-Taylor, Raf Morant, Henry Badgett, Damien Mace, Stuart Brisdon and Graham Hills

--Sound Editing for a Series: Stefan Hendrix, Tim Hands, Michelle McCormack, Steve Fanagan, Andy Kennedy, Jon Stevenson, Robin Whittaker, Caoimhe Doyle and Eoghan McDonnell

--Stunt Coordination: Paul Jennings

--Non-prosthetic Makeup in a Single-Camera Series: Paul Engelen and Melissa Lackersteen for “Winter is Coming”

--Prosthetic Makeup in a Series: Paul Engelen and Conor O’Sullivan for “A Golden Crown”

Based on George R. R. Martin's acclaimed "A Song of Ice and Fire" novels, "Game of Thrones" chronicles a treacherous clash among royal families to secure ultimate power of Westeros, a vast kingdom facing peril at every corner.

HBO has renewed the series for a second season, which will be based on Martin's second novel "A Clash of Kings." Filming begins later this month.

Meanwhile, Martin's fifth novel “A Dance With Dragons" hit bookstores this week and is enjoying vigorous sales. More than 170,000 print copies and 110,000 e-book copies sold Tuesday, according to Random House. The sales mark the largest opening for a Random House book this year.

“What’s been really interesting is the physical-digital split,” said Random House Publishing Group's Scott Shannon during an interview with The New York Times. “These days, for a lot of our big titles, digital is outselling physical. That’s not what we’re seeing here, and it really speaks to George’s fan base.”

"Game of Thrones" is up for a number of awards in the 2011 Airlock Alpha Portal Awards this year, including Best Actor/Television for Bean and Best Actress/Television for Headey. Also nominated are Peter Dinklage for Best Supporting Actor/Television, the episode "Winter Is Coming" for Best Episode/Television, and the show itself for Best Series/Television.

Vote for all of them and others once a day through July 26 by clicking here.

The series also stars Nikolaj Coster-Waldau, Emilia Clarke, Michelle Fairley, Maisie Williams, Sophie Turner, Kit Harington.