The Fallen World Series by Playwars aka Alex S. Weber

They thought sacrificing her would further their own goals. Instead, they changed an engineer into the single most powerful fabricator in existence, a dungeon core.Alexandra Rousseau, an engineer from the European Federation Star Navy with a past darker than the void between the stars, is unexpectedly launched into hyperspace when an FTL jump goes horribly wrong.She wakes in a world of magic and monsters, encountering a mysterious Order with plans millennia in the making... moreThey thought sacrificing her would further their own goals. Instead, they changed an engineer into the single most powerful fabricator in existence, a dungeon core.Alexandra Rousseau, an engineer from the European Federation Star Navy with a past darker than the void between the stars, is unexpectedly launched into hyperspace when an FTL jump goes horribly wrong.She wakes in a world of magic and monsters, encountering a mysterious Order with plans millennia in the making. When the Order makes a catastrophic mistake, transforming Alexandra into a dungeon core, they inadvertently give her the power to bring back technology long since thought lost on this world. With it she’ll make the Order pay and avenge the friends they’ve taken from her.But first, she must survive those who would steal her core for their own benefit while keeping her true identity a secret from the adventurers looking to delve into her dungeon. If they knew the truth, the Adventurer Guild would seek to end her, and the Order would stop at nothing to finish what they started… less

Alexandra’s dungeon has finally been discovered, and as news of her existence ripples through the world, empires and kingdoms take notice… and prepare for war.Her isolated dungeon sits between two nations with a rivalry that is centuries in the making, and neither is willing for the other to control the powerful dungeon that could link their war-torn nations. The Republic will do whatever it takes to enslave her, even if it means an all-out invasion... moreAlexandra’s dungeon has finally been discovered, and as news of her existence ripples through the world, empires and kingdoms take notice… and prepare for war.Her isolated dungeon sits between two nations with a rivalry that is centuries in the making, and neither is willing for the other to control the powerful dungeon that could link their war-torn nations. The Republic will do whatever it takes to enslave her, even if it means an all-out invasion.For Alexandra to keep her freedom, she’ll have to form a questionable alliance with a pair of former enemy adventurers, all while preparing for a secret war of her own. While the humans squabble in the light, she is building an army in the dark.She will be no one’s pawn, and she intends to use her new powers and superior forces to find her friends and get vengeance on the ones who took them. less