The End of the World Is Coming: a Fierce Battle with Skeleton Soldiers at the Beginning!

[Apocalypse + system + game + multiple worlds + imagination] Ling Yeduo accidentally obtained the system. Multiple worlds are about to converge, and alien creatures are coming! Skeletons, Goblins, Orcs, Dragons! These mysterious creatures have launched a fierce offensive against the earth! Human survival faces the most difficult challenge! Fortunately, he gained the system at the beginning and had the ability to fight against these alien monsters. From then on, he embarked on a completely different path than usual! There are not only ugly monsters, but also succubi, goblins, vampire banshees...