Mature Content Description

The developers describe the content like this:

All characters depicted in this game are over 20 years old.
This game contains nudity and sexual content, including riding position, breast play, doggy style, and more.

About This Game

666 years after the extermination of the demon race, the Demon King's daughter, Leona, awakens and resolves to execute the "Demon Instrumentality". This plan involves seeking powerful genes across various nations, engaging in reproduction, and giving birth to potent hybrid offspring to dominate these nations, ultimately spreading demon influence across the world.

Dark Lord Leona is a fast-paced card strategy game where you strategize and combine your playstyle each turn to crush your enemies.

• Leona

Confidence and wildness define her. As the daughter of the Demon King, she aims to conquer the world while searching for suitable races to seed across the lands, fulfilling the "Demon Instrumentality".

• Alec
  Leona's loyal confidant, dedicated to assisting her in realizing the Demonic Completion Plan.

• The game features 10 costumes that can be switched, each with different skills.

• Card Rogue, constantly switching and building different playstyles to battle enemies.

• 12 sets of dynamic CGs.

• 22 talent skills.