Parasite Slime Logo

Latest Version:0.3.3

Size:290M

Last Updated:Sep 10, 2025

Parasite Slime Victory Screenshots

OS: Windows

v0.3.3

Hotfixed a bug that prevented stamina from regenerating as time passed, which also caused the "Excitatory Hormones" skill to be ineffective.

Fixed a bug that made the Tetris mini-game completely unplayable.

About Parasite Slime

Welcome to Parasite Slime, a thrilling psychological horror simulation where you play as an anomalous slime specimen that has escaped during a containment breach. Your goal is to infiltrate a host's mind, influence their decisions, and suppress their sanity to achieve full control over their body. With branching choices, evolutionary skill trees, and multiple endings, every decision impacts your success in this ruthless battle for dominance. Will you erase their consciousness completely, or will external forces stop your assimilation?  

Gameplay Mechanics

1.  Mind Infiltration System: Seamlessly navigate the host’s subconscious through interactive neural networks. Manipulate memories, trigger emotional responses, and alter perceptions to weaken their sanity bar. Each successful manipulation unlocks new areas of the brain for further control.  

2.  Evolutionary Skill Tree: Develop your slime’s abilities across three branches—Cognitive Corruption (distort memories), Biological Hijacking (control bodily functions), and Stealth Adaptation (avoid detection). Unlock abilities like "Synaptic Overload" (induce hallucinations) or "Autonomic Dominance" (seize motor control).  

3.  Sanity Management: Balance your actions to avoid triggering the host’s mental defenses. Overly aggressive control attempts may alert the host or attract external entities (e.g., the Foundation), leading to game-over scenarios.  

Unique Features

1.  Dynamic Rival System: Compete against other parasitic entities—such as neural viruses or rival slimes—for control of the host. Engage in psychic battles using evolved abilities, with outcomes altering the host’s physiology and the story’s direction.  

2.  Environmental Interaction: Influence the host’s real-world actions by manipulating their choices—e.g., forcing them to isolate themselves or seek out specific locations that aid your assimilation. The game’s "Reality Echo" system mirrors psychological damage in the physical environment.  

3.  Multiple Endings: Achieve one of 12 endings based on your control method. Outcomes range from "Perfect Symbiosis" (peaceful coexistence) to "Erased Identity" (complete assimilation), with secret endings involving the host rebelling or external forces intervening.  

World & Narrative

1.  Branching Storylines: The narrative shifts based on key decisions, such as whether to cooperate with the host’s subconscious fragments or destroy them. Side characters (e.g., scientists tracking the breach) introduce subplots that aid or hinder your progress.  

2.  Lore Integration: Discover logs and memories detailing the slime’s origin, the containment breach, and the host’s past. Collect "Cognitive Fragments" to unlock archival data about other anomalies and the Foundation’s experiments.  

3.  Psychological Horror Elements: The game uses visual and audio distortions—glitching screens, whispered voices, and surreal dream sequences—to immerse players in the host’s deteriorating mental state.  

Technical & Accessibility

1.  Platform Availability: Released on Steam and Epic Games Store for PC and Mac. A mobile version (Android APK) is planned for 2025, featuring touch-optimized controls for skill tree navigation.  

2.  Performance Optimization: Designed for low-spec devices; uses stylized 2D/3D hybrid visuals to reduce GPU load. Includes options to reduce motion sickness triggers (e.g., toggle screen glitches).  

3.  Language Support: Fully voiced in English and Japanese, with subtitles in 10 languages. Includes a "Lore Glossary" for tracking plot details, aiding non-native speakers.  

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