[PC] Steam - Total War: Warhammer II - $24.74 AUD - Fanatical

While not the all time lowest price for this game it is not too far off it and the best price around currently.
Apparently, according to Fanatical, average playtime value of this game is about 72 hours.

From the website:

March your army of monstrous creatures into chaotic battles in the epic action-strategy Total War: WARHAMMER II. With this Steam PC key, you'll decide the fate of the Great Vortex in the sequel to the fastest-selling Total War game.

The game focuses heavily on turn-based strategy and real-time tactics, expanding over five continents of the New World – Ulthuan, Naggaroth, The Southlands, Lustria and Nehekhara. Your playstyle, your method of conquering – take on the game’s campaign or take the fight to fellow players and test your leadership skills and the strength of your army in online multiplayer matches.

CHOOSE YOUR RACE
A Millennia ago, a council of High Elf mages forged a vast, arcane vortex to draw the Winds of Magic from the world as a sinkhole drains an ocean, and blast the Daemonic hordes back to the Realm of Chaos. Now the Great Vortex falters, and the world again stands at the brink of ruin.
While powerful forces try to avert catastrophe, others seek to harness the vortex’s energies for their own bitter purpose. The race is on, and the very fate of the world will lie in the hands of the victor. Who will you choose: will it be Prince Tyrion, Defender of Ulthuan, and the High Elves as they desperately try to stabilise the vortex that is situated above their home continent – or maybe the Slann Mage-Priest Mazdamundi and his Lizardmen, who also seek to prevent cataclysm.
Perhaps you want to see the Great Vortex in the hands of an evil ruler, such as the Witch King Malekith and his sadistic Dark Elf hordes, who travel from Naggaroth and their labyrinthine Black Arks – or the rodent army of Skaven, led by Queek Headtaker, who stir in their foul subterranean tunnels awaiting any excuse to rise to the surface and become the dominant race.
Each of the four races in Total War: WARHAMMER II will be playable in single and multiplayer campaign, as well as custom and multiplayer battles. As the two Legendary Lords for each race all have their own unique campaign start positions, you’ll be able to play a 2-player co-op campaign with the same race. If you own both parts 1 and 2, you’ll be able to play in multiplayer as any of the races you own.
As one of the eight Legendary Lords featured in the four races from the Warhammer Fantasy Battles world, you must succeed in performing a series of powerful arcane rituals in order to stabilise or disrupt The Great Vortex depending on your race’s main objective.
Better still, if you own both Total War: WARHAMMER and Total War: WARHAMMER II, you’ll be able to use any of the races that you own in multiplayer modes – thanks to the Mortal Empires free DLC.

WAR AND CONQUEST
Explore the New World as you engage in statecraft and diplomacy to help build your empire, turn by turn. Where words are not enough, you’ll need to capture, build and manage settlements and recruit warriors to your armies. Legendary Lords and Heroes can be armed with mythical weapons and armour to lead your factions across the battlefield with great effect. Negotiate alliances or declare ‘Total War’ against those who stand between you and your objective.
When it comes to battle, prepare for an intense and exhilarating experience as you command thousands-strong legions of soldiers in tactical conflict. Harness powerful magic and unleash hell as monsters descend on you and your enemies. Victory is not always achieved by charging into battle with a large army; players must also utilise military strategies and lay ambushes to help turn the tide of combat.

Enjoy!