The Apocalypse Monster Maker

Apocalypse Zombie Stories: I’ve Looked Through Dozens, and Only One Was Readable

Any Stories Where the Protagonist Can Create Monsters?

No self-sacrificing saintly protagonists.

Genshin Impact With Raiden Shogun and Yae Miko as the Female Leads

Any Stories About Taming Monsters?

A Shelter That Upgrades Without Limit, With Daily Point Settlements to Buy Supplies

Behind-the-Scenes Stories Where the Protagonist Unleashes Monsters, Zombies, and the Like

The Protagonist Becomes an Abnormality in Lobotomy Corporation, No Romance

I'm mainly looking for a protagonist who grows over the course of the story. No ships, and no second personality or another self. Also, no plotlines where the protagonist suddenly gets a younger sister or anything like that.

Any Novels Where the Protagonist Gets a Mecha Through Sign-In From the Start?

A Million-Strong Plea: An Apocalyptic Story Can Have a System, but the Protagonist Must Be a Lone Wolf Forever

Any Fantasy Novels About a Nuclear-War Apocalypse on Earth Leading to the Myriad Worlds?

The protagonist fights alone in the apocalypse, then travels to the Myriad Worlds.

Novels About Crafting and Editing Pets or Evil Gods with Materials

Fantasy Billionaire Stories, But Not Mindless Ones