Total War: Warhammer has been officially announced for PC, Mac, and SteamOS by Sega and developer The Creative Assembly.

The game’s existence was accidentally outed earlier this year when it was mentioned in a book featuring art from all The Creative Assembly games.

It will be the first in a trilogy, and will tie into two further standalone installments and additional content packs to create the single largest Total War experience ever, featuring “war on a scale as yet unimagined”, according to Sega.

There will be a range of races to play, and players can expect gigantic monsters, flying creatures, legendary heroes, and storms of magical power take their place on the battlefield, alongside thousands of warriors clashing in real-time tactical battles.

The plot:

The valiant Karl Franz marshals the men of the Empire, seeking to unite the fractured elector counts under a banner of strength against their common enemies. Hungry for the vicious brutality of combat, the Greenskins flock to the tribe of Grimgor Ironhide; Orcs and Goblins alike filled with an insatiable thirst for carnage.

High King Thorgrim orders the stoic Dwarfs forth from their mountain strongholds, marching to vengefully right the grave injustices dealt to them over the millennia. Yet the motives of the Vampire Counts under Mannfred von Carstien are shrouded in murderous secrecy, his armies raised from the rotting ranks of the dead.

And while the Old World becomes torn by betrayal, war and the unleashing of unfathomable power, a greater threat still whispers in the winds from the north. The fabric of reality itself begins to rend and buckle…

"We've always loved the Warhammer universe, and couldn't wait to approach it with the same colossal scale and authenticity that has characterised our titles for the last 15 years," said Total War: Warhammer project lead Ian Roxburgh.

"We're bringing it to life in a way that nobody's attempted before."

Warhammer: Total War is "coming soon", said Sega.