Though this season's Game of Thrones tagline is "All Men Must Die," the hit TV series will live on through two more seasons, cable network HBO announced on Tuesday.

Based on George R.R. Martin's as-yet-unfinished A Song of Ice and Fire novel series, the epic fantasy show has been renewed for a fifth and sixth season.

"Game of Thrones is a phenomenon like no other," HBO programming president Michael Lombardo said in a statement.

"[Show producers] David Benioff and D.B. Weiss, along with their talented collaborators, continue to surpass themselves, and we look forward to more of their dazzling storytelling."

Set in a fictional world of dragons, brutal warfare, magic, wild ambitions and frequent betrayals, Game of Thrones features a large, sprawling cast — including Emmy Award-winner Peter Dinklage, Diana Rigg, Lena Headey, Emilia Clarke, Nikolaj Coster-Waldau, Charles Dance, Natalie Dormer, and Kit Harrington —  is shot in Northern Ireland, Croatia, Iceland and other stunning locations around the globe.

Approximately 6.6 million viewers tuned into Sunday's debut of Season 4, making it the premium network's most-watched program since the series finale of acclaimed mafia drama The Sopranos in 2007.

The massive demand for the new season debut also crashed the HBO Go streaming service, leaving eager fans incensed.

The renewal will make the show HBO's most senior original scripted series, given the upcoming conclusions of True Blood, Boardwalk Empire and The Newsroom.