The status of every Game of Thrones spinoff we know is in development (Updated for 2026)

This week, HBO Chairman and CEO Casey Bloys delivered a somewhat disappointing update on the Game of Thrones television franchise while doing press at the 78th Primetime Emmy Awards: beyond House of the Dragon and A Knight of the Seven Kingdoms, there's currently "no movement" on other Thrones spinoffs at the moment.

Lest we immediately throw ourselves into a pit of despair, this update doesn't particularly surprise me, and I don't think it's cause for alarm. Bloys was at the Emmys to promote A Knight of the Seven Kingdoms, which was up for Outstanding Drama Series; he even confirmed once more that season 2 is planned to release in the "first half of '27," so we can safely bet on more Dunk and Egg next year. HBO also has its fourth and final season of House of the Dragon ahead, and it's understandable that the network would want to focus on getting that out successfully before it turns its attention to what comes next.

All that said, HBO has famously developed a number of Game of Thrones spinoffs over the years, all in the hopes of turning its hit series into a growing franchise. At this point, it seems safe to say that they've pulled it off; both House of the Dragon and A Knight of the Seven Kingdoms have been well received, earning awards, nominations, and the adoration of fans.

But what about all those other Thrones spinoffs in the pipeline? "In development" can mean a number of things, from initial ideation to scripts being drafted to anything in between. HBO has shelved more than a few of these spinoff ideas over the years, such as Blood Moon, a series about the original White Walker invasion of Westeros; and a live-action Flea Bottom show, which would have been about life in the slums of King's Landing. Just because the network did some exploratory work on spinoffs is no guarantee that we'll actually get them on the small screen. Blood Moon even went so far as to film a pilot before it met with the headsman's axe.

With all that in mind, it's a good time to take stock of all the Game of Thrones spinoffs we know are currently in development at HBO. Let's run through them, starting with the obvious and getting into the weirder and more obscure options as we go.

House of the Dragon — Currently Airing

The first Game of Thrones spinoff to actually go the distance is of course House of the Dragon, which premiered in 2022 and recently wrapped up its third season. This prequel begins around 200 years before the events of the main series, and chronicles a terrible civil war known as the Dance of the Dragons, where Rhaenyra Targaryen and her half-brother Aegon II tore the realm apart in a dispute over who should sit the Iron Throne. Before the Dance, House Targaryen was at the height of its power with more than a dozen dragons under its control; after, the dragons are all but extinct and the Targaryens themselves hardly fare much better.

This story is adapted from a section of George R.R. Martin's novel Fire & Blood, which details the first 136 or so years of the Targaryen dynasty. The show has one more season left, which is due to begin pre-production in October 2026 and start filming in Spring 2027. We'll be watching it sometime in 2028.

A Knight of the Seven Kingdoms — Currently Airing

The other Thrones spinoff to actually make it to the screen is A Knight of the Seven Kingdoms, which takes place more or less right smack in the middle of the timeline between House of the Dragon and Game of Thrones. The dragons are all gone and unrest stirs in the realm, but House Targaryen still holds sway.

Into this political morass strolls the unwitting Ser Duncan the Tall, a fledgeling hedge knight who's out to make a name for himself at a tourney in Ashford Meadow. Along the way he encounters Egg, a precocious bald child with a massive secret. Together, this odd couple pairing goes on adventures and wins the hearts and minds of viewers as well as the denizens of Westeros at large — is it any wonder we saw them at this year's Emmys?

A Knight of the Seven Kingdoms is based on George R.R. Martin's Tales of Dunk and Egg novellas, of which three have been published to date. The show's first season premiered in January 2026. Season 2 has wrapped filming and will premiere in the first half of 2027, while we'll likely see a third season sometime in 2028. After that, we'll see how HBO plans to cross the boundary beyond Martin's source material — something which showrunner Ira Parker already has a plan to address.

Game of Thrones: Aegon's Conquest

While most of the entries on this list are HBO television shows, the upcoming Game of Thrones: Aegon's Conquest movie is being produced by Warner Bros., the film arm of HBO's parent company Warner Bros. Discovery. HBO was developing its own TV series about Aegon the Conqueror, but it sounds like the powers that be went far enough down the production pipeline with both versions of the story to decide that a movie was the way they wanted to go for the Conquest.

Aegon's Conquest will cover exactly what it sounds like: the campaign waged by Aegon I Targaryen and his sister-wives, Visenya and Rhaenys, which united the Seven Kingdoms under the Iron Throne for the first time in their history. Like House of the Dragon, this material is covered in Fire & Blood. As such, we know Aegon's campaign includes absolutely iconic events that will be perfect for the big screen, like Balerion the Black Dread's melting of Harrenhall, the Field of Fire, and the building of King's Landing and the Iron Throne.

Game of Thrones: Aegon's Conquest is still in early development. We do know it won't be released until at least 2028. No castings or even a director have been announced. But Warner Bros. has confirmed the movie is real, greenlit, and going to happen, and the studio is working off a script from House of Cards creator Beau Willimon. Expect more updates sooner rather than later on this one.

Nine Voyages

One of the most-discussed spinoffs still in some form of early development is Nine Voyages, also referred to at various points as The Sea Snake. This series would explore the famed nine voyages of Corlys Velaryon in his younger years, which turned him into the richest and most renowned sea captain in the history of Westeros. Those journeys included the Free Cities, the Port of Ibben, Asshai-by-the-Shadow, and more. It would be a wonderful opportunity for HBO to explore more of George R.R. Martin's fantasy world beyond the Seven Kingdoms, something it's been surprisingly reticent to do since late in Game of Thrones' run.

First reported on in 2021, The Sea Snake was being developed as a live-action series. However, Martin later confirmed that HBO had shifted its focus to animation instead after realizing that the show would prove far too costly to produce, since it would revolve around the Sea Snake regularly visiting new regions, which would mean the production would need to constantly build new sets or scout new filming locations to match.

As of January 2026, the animated Nine Voyages is still in some form of development, with animator Genndy Tartakovsky attached.

Ten Thousand Ships

The other travel-centric Game of Thrones spinoff that has been in development for years is Ten Thousand Ships, which would cover the journey of Princess Nymeria, who led her displaced people from the river Rhoyne in Essos across the Narrow Sea, where they eventually settled in Dorne. This was one of the earlier Game of Thrones spinoffs that was pitched to HBO, and years later, the network is still trying to crack it.

Nymeria is a mythic figure in A Song of Ice and Fire lore. Her people were the last in their region to hold out against Old Valyria; as the dragonlords finally secured victory, the princess slipped away with as many refugees as she could aboard a massive, ragtag fleet — the titular 10,000 ships. Their travels took them all around the map, including to places we've never seen on screen before like Sothoryos, the continent to the south of Westeros. When they finally did land in Dorne, they quickly became embroiled in a power struggle there which secured House Martell's place as the leaders of the desert nation — thanks to Nymeria's help.

Ten Thousand Ships has gone through multiple iterations over the years, with multiple writers attached. In a 2024 update, Martin confirmed that the series is still in development, and that Pulitzer Prize-winning playwright Ebony Booth was penning a script for a pilot. Since then, it's been all quiet for Nymeria and Ten Thousand Ships.

The Golden Empire

Another animated spinoff, The Golden Empire is set in a distant corner of George R.R. Martin's world: Yi Ti. This mighty empire is inspired by Imperial China, and to date it has not been fleshed out very much in Martin's written works at all. And I'm not kidding about that — all we've got for Yi Ti outside of a handful of mentions in the main books is four pages in The World of Ice and Fire, which give a very broad overview of its history and culture. That means that HBO would practically have carte blanche for whatever sort of story it would want to tell in the setting.

There are a few intriguing possibilites for what this series could be about though. We know that Yi Ti is one of the most ancient civilizations in the entirety of Martin's world, and that it is ruled over by a god-emperor, with hundreds of princes below him. The YiTish have seen their civilization rise and fall in power, with plenty of struggles amongst its elite, such as the rise of the Bloodstone Emperor, who murdered his sister to take the throne and plunged the realm into darkness. As things stand in current Westerosi times, Yi Ti has not one but three god-emperors, all of whom are vying for ultimate control...which sounds exactly like the sort of thing that would make a good TV show!

The last time we got a solid update about The Golden Empire was in 2022, when Martin wrote on his blog that "Our working title is THE GOLDEN EMPIRE, and we have a great young writer on that one too, and I think the art and animation is just going to be beautiful. I would tell you more if I could." So for now, our watch continues for news about the Yi Ti spinoff.

Game of Thrones: The Mad King

Game of Thrones: The Mad King is very different from everything else on this list in that it's a stage play, which made its debut this year from the Royal Shakespeare Company in Stratford-upon-Avon.

The Mad King is about the great tourney at Harrenhal, where Rhaegar Targaryen assembled the lords of Westeros in hopes of deposing his father, Aerys II, the titular Mad King of Thrones lore. The story covers so much more than just the tourney however; this is the closest we've gotten to seeing all the events of Robert's Rebellion firsthand, including Rhaegar's forbidden romance with Lyanna Stark. Many secrets from the important time period in Game of Thrones history have come out in the play, so this is truly an excellent companion piece to the stories we already all known and love in this world.

The initial run of Game of Thrones: The Mad King has wrapped up, but the show is heading to London for a second run in 2027, which means there will be more opportunities to see it in the near future.

Snow

Perhaps the most widely publicized of the prospective Game of Thrones spinoffs is Snow, which would have seen Kit Harington return as fan-favorite character Jon Snow to explore what the former King in the North's life was like after the main series.

Alas, as of right now, the original idea for the Jon Snow series is dead. In a far-ranging piece published earlier this year, it was revealed that HBO essentially decided this new sequel was too much of a downer to follow through on, especially considering the insanely high bar the studio would have to meet to feel confident in a true sequel to Game of Thrones. The pitch for this show was a quieter, more character-focused affair that dug deep into Jon Snow's psyche as he gradually unraveled from PTSD caused by the events of the main series. He threw away his Valyrian steel sword, Longclaw. He chased off his direwolf, Ghost. He built cabins and then burned them down. It does sound kind of like a downer.

Harington has corroborated the news that Snow is shelved for now, so we can set this one safely aside. However, in that same piece where the behind-the-scenes details for why the spinoff didn't move forward were exposed, longtime Game of Thrones journalist James Hibberd he also claimed that another potential sequel idea was being reworked that could include Arya Stark in addition to Jon Snow. That would allow for scenes in Essos, though it is very unclear how that would be relevant to Jon north of the Wall.

Last we heard, the Jon and Arya spinoff was in the very early stages of exploratory development, so I wouldn't hold my breath for it as of right now.

Other sequel series

That sums up all the series we have titles and broader information for that are still in development at HBO. However, we do know that there are other series cooking at the studio — we just don't know anything about them. Martin confirmed during a 2025 appearance at the Iceland Noir convention that HBO still had "five or six series" in the works, adding, "Yes, there are some sequels."

This was after Harington confirmed Snow had been shelved, so it's unclear whether that is one of the sequels Martin was referring to. But I'd wager the reworked version of that concept which included Arya might have been.

At the time, it caused quite a stir that the author said sequels, plural. This implies that there may be more Thrones shows in development that explore some sort of storyline after the ending of the main series, which have yet to be revealed. That's about all we know for now, so time will tell if we ever learn more.

Other animated series

Along similar lines, we know that The Golden Empire and Nine Voyages are not the only animated shows HBO had in the works either, once again thanks to Martin. During a talk at the Oxford Writers' House in 2024, Martin confirmed that there were 4 animated Game of Thrones spinoffs in various stages of development.

Since two are accounted for, that leaves two more that have yet to be formally reported on. What might they be about? Other Targaryen rulers? The Doom of Old Valyria? The exploits of Mushroom, Rhaenyra Targaryen's loyal and gossip-prone dwarf fool who was cut from House of the Dragon? Your guess is as good as mine!

Just like with the live-action sequels, we keep our vigil on the Wall, and we wait to learn more. But in the meantime, there are plenty of confirmed spinoffs to get excited about, such as House of the Dragon, A Knight of the Seven Kingdoms, Game of Thrones: Aegon's Conquest, and the stage play Game of Thrones: The Mad King.

The next Thrones spinoff hitting the airwaves is A Knight of the Seven Kingdoms season 2, coming in 2027.

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