Dragonfall: Expedition Wyrmgrave

In his past life, Gustave watched an industrial world drown in acid rain and burning plastic while Immortals walked the streets as untouchable tyrants. And he died with a single unanswered question: How do you kill an Immortal as a mortal? Reincarnated as Gustave von Wyrmgrave on a magical world, as the sole heir of a decaying noble house on the most dangerous frontier. He has to face dragons, horror monsters and seemingly Immortal Beings. But Gustave has a plan; Gunpowder > Engines > Rocket launchers > Planes > Nukes >> Combine them all with magic! He has a strange system no one else can see and the memory of a civilization that got everything right except the ending. Last time, science alone wasn't enough to kill a god or to create a perfect civilization. This time, they handed him magic. Their mistake... [Warning: Exponential Growth + Kingdom Building + MagiTech + SYSTEM + Mysterious MC]