Novels like Optional build

All share Dungeon Core

Also GameLit and Reincarnation

Oathbound: Rise of the Crownless Paladin

Also GameLit and Reincarnation

Just Another Dungeon Core

Also GameLit and Reincarnation

My Roommate Got The Legendary Hero Rank. I Got Commoner.

Also GameLit and Reincarnation

No One Truly Dies in My Dungeon

Also GameLit and Reincarnation

Cat Girl Evolution

Also GameLit and Reincarnation

Also GameLit and Strategy

RE: Deity - The Breath of Creation -

Also Reincarnation and Strategy

Dragon Core: The Dragon-Girl Evolution & Princess-Collecting Dungeon Core Isekai LITRPG!

Also Reincarnation and Strategy

A Dungeon's Survival

Also GameLit and Strategy

Reincarnated as Heracles

Also GameLit and Reincarnation

The King and the Core, a Dungeon Core Story

Also GameLit and Reincarnation