@The Lorax You can try the Dungeons 3. You've been born a demon lord and manage a dungeon, like in dungeon keeper. Except, you can also create an army and invade the overworld
https://mangaforest.com/manga-list/254371
My Fav Manwha I Call it Manga Infinity
Spoiler!
"Master of none, But still Master Chu," "Living life one Adventure at a time join me on the journey