Title : Tentacle Wars
Original Title : 欲望の女神イリーナ
Language : Japanese, English, Chinese, etc (Official)
Developer : SlaveOS
Released date : 2025-10-16 (latest)
https://store.steampowered.com/app/3898790/

Overview A 2D vertical-scrolling sci-fi shooter that combines classic arcade combat with adult-themed story progression, where enemy Valkyries are gradually converted into your exclusive co-pilots through resonance.

Mature Content Description
The developers describe the content like this:

This game contains sexually explicit scenes involving suggestive dialogue, partial nudity, and simulated intimacy between fictional characters. All depicted characters are over 18 years of age.
The game includes themes of neural synchronization, submission, and emotional transformation presented in a science fiction context. While there are scenes of power imbalance and psychological manipulation, all narrative content is fictional and stylized.
There is no depiction of real-world sexual assault, drug abuse, or self-harm.

About This Game
This Game Step into the cockpit of a high-synchronization combat mecha in this 2D vertical-scrolling sci-fi shooter, where high-speed action meets provocative resonance. You play as a lone pilot fighting through enemy-controlled airspace dominated by powerful female Valkyries. As you defeat these bosses and progress through the story, you'll unlock deep narrative chapters where your enemies are slowly converted into fully synchronized co-pilots—each bringing their own personality, backstory, and combat abilities.

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

Some of the artwork in our game was initially created using AI-assisted tools for early composition and conceptual layout purposes only.

However, all visual assets used in the final game build, including character portraits, backgrounds, UI elements, and promotional graphics (such as capsule and key art), were significantly modified, repainted, or fully redrawn by our in-house or contracted artists.

We ensured that:

No raw or unedited AI-generated images are present in the shipped product.

All final assets have been refined and finalized by human artists to meet artistic consistency, originality, and copyright standards.