Alien Invasyndrome Logo

Latest Version:DEMO v0.96.1

Size:95M

Last Updated:Sep 08, 2025

Alien Invasyndrome Victory Screenshots

OS: Windows

v0.96.1 Demo

・Added the Security room mission and Area 1 Boss fight

・Demo now ends after boss fight

・Updated how attacking works to make it smoother

・No new sex scene

About Alien Invasyndrome

Alien Invasyndrome is a tense survival horror adventure where players navigate a deranged cosmic saga aboard the Atlas, a starship crewed entirely by women on a quest to preserve humanity’s future. But as alien larvae infiltrate the crew, paranoia and primal instincts collide in a battle for survival, heritage, and humanity’s dark secrets.

Deep-Space Paranoia & Strategic Horror

1. Infectious Threats: Uncover hidden alien larvae embedded within the crew, blending seamlessly into social dynamics while slowly corrupting humanity’s last hope.

2. Moral Dilemmas: Decide who to trust, whom to sacrifice, and whether to prioritize humanity’s survival—or let alien evolution reshape your crew’s destiny.

3. Dynamic Crew Dynamics: Manage relationships among female crewmembers, whose trust, fears, and hidden agendas shift based on your choices, creating unique narrative branches.

Cosmic Survival with Twisted Goals

1. Dual Evolution Quest: Race to secure a viable human bloodline while confronting the alien species’ silent war for dominance, blurring lines between savior and invader.

2. Environmental Hazards: Navigate the Atlas’s labyrinthine halls, malfunctioning systems, and eerie cosmic voids outside, where danger lurks in every shadow.

3. Resource Scarcity: Scavenge supplies, medicines, and clues to counter both biological threats and the crew’s crumbling mental states.

Narrative & Visual Mastery

1. Branching Trajectories: Your choices ripple across three possible endings—human triumph, alien assimilation, or a haunting hybrid apocalypse—shaped by dialogue, actions, and timing.

2. Stunning Unreal Engine Graphics: The Atlas’s sleek futurism clashes with grotesque alien mutations, rendered in high-fidelity detail to amplify unease.

3. Atmospheric Soundtrack: Eerily pulsating synths and whispered crew dialogue build tension, while alien whispers hint at lurking horrors beyond the crew’s grasp.

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