Infinite Doom [I'm Stuck with a System Bug]

Infinitely streamed apocalyptic novels, everything you want about the apocalypse including zombies, natural disasters, rebirth, mechas, farming, systems, space, and collecting supplies are all here. The protagonist is decisive in killing, neither a virgin nor a fool. He is as fierce as a tiger in planning for rainy days. He sends hydrogen bombs at the beginning. Since the protagonist learned the bug of the card system, he has carried out various ruthless activities in various worlds. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.