Downloadable Content

Mature Content Description

The developers describe the content like this:

All characters depicted in this DLC are adults aged 21 or older.

The artbook contains erotic illustrations, character artwork, concept sketches, and visual materials exploring the bunker, its inhabitants, and the world of the Lust-Tec Project.

About This Content

Sex Vault: The Lust-Tec Project – Digital Artbook opens the doors to the secret research facility at the center of humanity's survival.

Inside, you'll find:

• Character Illustrations – survivors, specialists, and combat operatives presented across different appearances and situations.
• Concept Art & Sketches – early designs, alternate concepts, and development materials.
• Facilities & Locations – bunker interiors, laboratories, living quarters, and mission environments.

This artbook explores the visual development of the world, technology, and characters that define The Lust-Tec Project.

You can access this DLC by opening the game's root installation folder (the Steam game directory) in your file explorer.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

AI used to conceptualize the girls' images and promo materials, which are finalized by artists and animators at the end. Some of the backgrounds are AI generated