Warhammer: My Empire is Full of Transmigrators

At the dawn of the Siege of Terra, Arthur, a Warsmith of the Fourth Legion, turned his macro-cannons and led his remaining forces to shatter a warp gate. When he finally emerged from the warp jump, it was ten thousand years later—the darkest and most desperate era of the 41st Millennium. Relying on the [Golden Construct Heritage], Arthur originally planned to carve out his own territory in the "Imperium Nihilus" and quietly live out his days as a staunchly materialistic warlord. That is, until he began stumbling upon some profoundly out-of-place individuals in this new era. As lost STC templates from the Golden Age of Technology begin to unlock, the fates of various transmigrators intertwine. While some have dedicated their lives to humanity, others have knelt before Chaos to become mutated lapdogs, and still others have had ideological shackles bolted onto their minds by alien brainwashing. Arthur soon realizes that lost "compatriots" are scattered across this desperate sea of stars in far greater numbers than he ever imagined. Very well. If that is the way it is, there is nothing left to say. Rallying a fallen Rogue Trader dynasty, he uses grand dreadnoughts and massive macro-cannons to fight the awakening Necron Dynasties, deploying Titan Legions and Golden Age technology to seize the Eldar Webway. Amidst the roaring tides of Orks and the hopeless swarms of the Tyranids, the heavy industrial furnaces of billions of tons roar to shatter the starry sea, forcefully forging a militarized Iron Empire entirely free from the enslavement of any gods!