Dawn of War III

Dawn of War III is a real-time strategy video game released by Relic Entertainment and Sega in partnership with Games Workshop, the creators of the Warhammer 40,000 universe. It is the third stand-alone title in the Dawn of War series, and the first new release in the series since Dawn of War II - Retribution in 2011. It was released for Microsoft Windows on April 27, 2017.

Plot
A "catastrophic weapon," known as the Spear of Khaine, is discovered on the lost planet Acheron, and three forces converge on the planet – the Blood Ravens Space Marines under legendary commander Gabriel Angelos, the Eldar led by Farseer Macha (with both heros returning from the first game), and an Ork horde led by Warboss Gorgutz (his fourth appearance, after Dawn of War - Winter Assault, [ Dawn of War - Dark Crusade]], and Warhammer 40,000: Dawn of War - Soulstorm). The campaign begins on the Imperial Knight world of Cyprus Ultima, which is under siege from a massive Ork horde led by Warboss Gitstompa. For reasons unknown, the Imperial Inquisitor Holt has ordered the Imperial Navy to blockade the planet and denies Lady Solaria's Imperial Knight House Varlock any reinforcements planetside. The Blood Ravens under Chapter Master Gabriel Angelos run the blockade to help Lady Solaria, but not before Varlock Keep is looted by Gitstompa's lieutenant (at the time) Gorgutz. Gitstompa uses the looted parts to build a enormous cannon capable of defeating the Eldar. Meanwhile, Inquisitor Holt impatiently reminded Angelos that their main mission is to use a dozen starforts in order to form a blockade to contain Acheron rather than be distracted by Orks.

Autarch Kyre, the leader of the Biel-Tan warhost on Cyprus Ultima, summons Farseer Macha to aid him against the Orks on Cyprus Ultima. Kyre is using Cyprus Ultima as a staging ground to travel to the planet Acheron when it emerges from the alternate dimension of the Warp. Kyre is obsessed with the Spear of Khaine, named after the lost Eldar god of war and said to be able to kill enemies with a single blow. He seized the Spirit Stone of Farseer Taldeer (Dark Crusade) from her twin brother, the Eldar Ranger Ronahn (Retribution), when he was trying to transport it to to their home Craftworld of Ulthwé. While in his custody, Taldeer unwittingly told Kyre of the prophecy surrounding the Spear of Khaine. In a trance, she prophecised that the wayfarers would be called forth by the Spear of Khaine and united by the Storm Prince. Convinced that he is the Storm Prince destined to unite the fractured and nomadic Eldar, the power-hungry Autarch secretly keeps her prisoner as a way to swell his own ranks of his Swordwind army through using her as a puppet. Unable to communicate with anyone, Taldeer is effectively isolated from any help. Farseer Macha, however, does not trust Kyre at all, and secretly begins to build an insurgency with the aid of Ronahn, who pretended to cooperate with Kyre as his spymaster, and Jain Zar, Phoenix Lord of the Howling Banshees.

One detachment of Eldar forces assault the Imperial Starfort Helios where Blood Ravens Librarian Jonah Orion is studying an Eldar artifact, but Gabriel Angelos and his Space Marines arrive in time to rescue the Librarian, although at the cost of critically damaging the Starfort. The Inquisitor is incensed at the damage done and Gabriel orders Chaplain Diomedes (Retribution) to stay with his detachment on Helios to defend it and oversee repairs.

Back on Cyprus Ultima, Gitstompa's cannon is sabotaged by Gorgutz, and it explodes just as he is about to engage Macha's forces, who overrun him. With Gitstompa defeated, Gorgutz quickly subjugates Gitstompa's other subordinates, which include the Ork Weirdboy psyker Zapnoggin and the Big Mek Wazmakka. Gorgutz forms a new warband with them and begins preparations to travel to Acheron, which he heard about after battling the Eldar in the Kaurava system. Learning of the Spear and Acheron, Gorgutz wants the "SUPER pointy stikk" all for himself.

Farseer Macha and her forces prepare to assault the Blood Ravens on Cyprus Ultima and nearly kill both Librarian Orion and Gabriel Angelos when a meteor shower interrupts the battle, heralding the arrival of the planet Acheron.

Gorgutz seizes the opportunity to crash his Kill Kroozer spaceship into another Starfort and overwhelms the defending Blood Ravens before landing on Acheron. Helios crashes on Acheron's outer shell when it emerges from the Warp. Gabriel Angelos and a squad of Terminators rescue Chaplain Diomedes from the Eldar and Orks attacking him in the wreckage of Helios.

Farseer Macha and Ronahn manage to have an audience with Gorgutz (after killing quite a bit of his Orks) and convince him to fight Kyre in an effort to derail Kyre from getting to the true surface of Acheron where the Spear is kept. Ronahn leads Gorgutz straight to Kyre's outposts and Gorgutz kills the Wraithlord Valador, another lieutenant of Kyre. While Kyre is preoccupied fighting Gorgutz's forces, Macha, Jain Zar, and a handful of Striking Scorpions raid Kyre's main base where the Spirit Stone of Farseer Taldeer is kept. Macha's strike group barely escapes with the aid of sympathizers within Kyre's ranks as well as a surprise attack from a detachment of Gorgutz's Orks.

Meanwhile, Gabriel Angelos has tracked Gorgutz's warband all the way to the Vault, one of the many passageways to Acheron's true surface below its outer shell. He destroys Wazmakka's cannon that was brought there to break open the vault. The Inquisitor orders the bombardment of the Vault despite Angelos being in the immediate vicinity of it, in an attempt to destroy it and cut off any access to the Spear. Enraged, Librarian Orion and Chaplain Diomedes swears vengeance on the Inquisitor for (seemingly) killing the Chapter Master. It is not until Lady Solaria informs them of news of Angelos' survival from Inquisitor Horst that they shift priorities towards regrouping with Angelos on the surface instead. The Imperial orbital bombardment does not have the intended effect of sealing the Vault, but rather, breaks it open. Kyre sees the destruction of The Vault as an opportunity to lead his forces down to the true surface of Acheron.

Macha and Ronahn make an unsettling discovery on Acheron - they come across an enormous Greater Daemon of Khorne - a Bloodthirster, trapped in the ice, but attempting to awaken. The Bloodthirster was sealed there by the ancient Eldar eons ago. Kyre also discovers the Daemon but thinks the Spear of Khaine should be used to kill the daemon. Taldeer, Ronahn, and Macha aren't so sure, and think the Spear is nothing more than a trap. When they attempt to flee via the Colossus Gates, Kyre locks down their escape routes. With time running out, Taldeer orders Ronahn to place her Spirit Stone in a Wraithknight and to pilot her new mechanical body to help break down the Colossus Gates' locks. Knowing that only twins, one dead and one living can pilot a Wraithknight, Ronahn reluctantly complies despite his objections to risking her life again. They flee to another section of Acheron away from Kyre's forces.

Gabriel Angelos and his Blood Ravens, along with Lady Solaria and her Imperial Knight walker, arrive at the Temple of the Spear of Khaine and overrun Kyre's forces as well as a portion of Gorgutz's forces, but Gorgutz exacts his revenge with the help of Big Mek Wazmakka's Beauty the Morkanaut.

With Taldeer explaining that the prophecy was unclear and her vision partially obscured, both Macha and Taldeer meditate and try to clearly decipher the contents of the prophecy. Meanwhile, both Kyre and Gorgutz arrive at the altar of the Spear and Kyre quickly bests the Ork Warboss. Kyre takes the Spear for himself and attempts to kill Gorgutz with it. Unfortunately for Kyre, it is revealed the prophecy regarding the Spear was a trap to free the Daemon. The "Spear's" main blade shatters without harming Gorgutz, and Kyre is consumed in a blood sacrifice that releases the Bloodthirster from the ice. Now freed, the Bloodthirster becomes empowered by the countless lives taken on and around the planet for millenia - lives slain all in pursuit of the "Spear."

All three factions - Eldar, Space Marines, and Orks are stuck battling Warp Spawn generated by the Daemon using echoes of the warriors slain on the planet. Farseer Macha tasks Gorgutz with destroying the Chaos Spires that are powering the Daemon and generating the Warp Spawn. Meanwhile Macha urges Gabriel Angelos to sacrifice his Battle Barge, Dauntless, to cripple the Daemon by ramming it into a fissure on the planet's surface; sacrificing the lives onboard but preventing the Daemon from wreaking havoc on the galaxy.

With Acheron fragmented and destroyed, the Daemon diminishes in size and power. With the urging of Macha, who believe the prophecy predicted all three factions (all of whom are nomadic "wayfarers") must work together to defeat the Daemon, now revealed to be the Storm Prince, the three heroes team up to defeat the Daemon after battling through hordes of Warp Spawn on the fragment of the planet housing the Temple of the Spear. All three heroes warily part ways after defeating the Daemon, but Gorgutz stays back and grabs the Spear for himself as a trophy before leaving.

In an after credits scene, a Necron Overlord has taken notice of the events on Acheron and prepares his armies.