Microgaming has launched a slot based on the HBO series Game of Thrones which is available both online and on mobile.

The slot is a 5x3 reel game, available in both 243 ways-to-win and 15 lines. Players are given the opportunity to “serve” one of the four of the series’ Houses during the free spins selection feature, triggered by three Iron Throne scatter symbols.

House Baratheon has eight free spins, with a 5x multiplier. This free spin feature is the highest multiplier of the game, and the Baratheon high symbol is stacked three high throughout the reels.

House Lannister has ten free spins with a 4x multiplier with the Lannister high symbol stacked four deep.

House Stark has 14 free spins with a 3x multiplier with the Stark symbols stacked five high.

House Targaryen has 18 free spins with a 2x multiplier.

Additional features include stacked wilds across all reels and a bonus dragon’s egg if two scatter symbols land anywhere on the reels.

Roger Raatgever, CEO of Microgaming, said: “We revealed our licensing agreement for the Game of Thrones series in February, and anticipation for the game’s launch has been building ever since.

“With the game going live today to both Microgaming and Quickfire operators players can now enter the fantastical world of Game of Thrones.”