Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Chapter 7[LN] Volume 2: .1

Maxwell was once a game developer, crafting worlds from code—but now, he’s trapped inside his own creation.As the last dragon user in this cultivation game world, he makes use of his system that rewards him for every kill. 100% drop rate, every time.But with each quest he conquers, he moves one step closer to becoming the strongest player alive—and rewriting his own fate in the process.

Wang Bin unexpectedly gained the ability to travel between the post-apocalyptic world and the real world. In the apocalypse, he organized a powerful team and continuously transported gold back to the real world.Using the gold from the apocalypse, Wang Bin built a commercial empire in the real world, eventually becoming the wealthiest person on Earth. His every word and action could influence the rise and fall of entire nations.At the same time, his development in the apocalypse was equally impressive.Through countless brutal battles, he ultimately established the largest and safest settlement in the dying apocalyptic world, making an extraordinary contribution to the survival of humanity.

…but it seems pretty doable.