Planned Release Date: August 2026

Mature Content Description

The developers describe the content like this:

This game contains adult sexual content, nudity, sexually suggestive dialogue, fantasy parasitism and body takeover themes, and erotic event scenes involving fictional adult monster-girl characters. All characters depicted in sexual contexts are fictional adults.

About This Game

Steal bodies. Survive the dungeon.

Parasite Survivor is a possession-based roguelite RPG where you become a mysterious parasite slime and survive by taking over the bodies of monsters.

The story takes place in the Graveyard, a vast dungeon region in the western part of the godless world of Royarna.
Fight monsters, weaken them, possess their bodies, and move from one form to another as you struggle to survive.

Cute monster girls, powerful boss-class monsters, terrifying undead, and adult event scenes unlocked through possession await you.
Battle, steal, switch bodies, and build your own twisted parasite lineage.

Main Systems

• Body takeover through parasitism
  Weaken enemies and successfully possess them to use their bodies. Stronger bodies allow you to challenge even more dangerous foes.
  
  
• Day-by-day survival
  Your goal is to survive for a set number of days. Fight, explore, rest, and strengthen yourself. Each daily choice affects your survival.
  
  
• Turn-based battles and possession commands
  Reduce the enemy’s HP and look for the right moment to use the possession command. Your situation and the enemy’s remaining HP affect the chance of success.
  
  
• Lineage, monster guide, and upgrades
  Check the bodies you have possessed through the lineage screen, record encountered monsters in the monster guide, and use PP to strengthen your parasite.
  
  
• Tutorial and language support
  A tutorial is included for new players. The game supports Japanese, English, and Simplified Chinese.
  
  
• Demo available
  The demo lets you play from Day 1 to Day 10, followed by a boss battle.

This game contains adult content. All characters depicted in sexual contexts are fictional adults.
This game is currently in development, and the final release may include changes or additional content.

AI Generated Content Disclosure

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

Generative AI tools were used only to assist with localization drafts and text review for some in-game text and store-related text. All final text was reviewed, edited, and implemented by the developer. No AI-generated artwork, character images, background images, UI graphics, audio, video, or live-generated AI systems are included in the game. Visual assets are either created by the developer or legally licensed third-party assets confirmed as non-AI-generated.