In Alien Invasyndrome , players navigate the corridors of the , a ship crewed by female members searching for humanity's future. The primary objectives include:
is a stealth-action survival horror game developed by Mozu Field (also known as Sixie) that puts players in the role of an extraterrestrial lifeform infiltrating a human starship. Unlike traditional alien-themed shooters, this title focuses on stealth, evolution, and strategic colonization of a crew. Core Gameplay Mechanics
: Infiltrate the crew by catching members from behind to hypnotize them, with the ultimate goal of forming an alien colony. Alien Invasyndrome Free 2021 Download
The game is set aboard the , where a hidden alien larva—controlled by the player—strives to ensure its own kind's survival. As the story progresses, the atmosphere shifts from standard space exploration to a tense survival saga where paranoia runs high among the crew members. Players must distinguish between genuine and "fake" crew members to eliminate threats to their budding colony. Technical Details and Availability
: As of early 2026, the game is in Demo v0.99.1 . In Alien Invasyndrome , players navigate the corridors
The project is currently in active development, with frequent updates to its demo version.
: Players must complete specific tasks, such as stealing security documents, while managing limited hiding spots and increasing enemy patrols. Plot and Setting Core Gameplay Mechanics : Infiltrate the crew by
: Use arrow keys to move and specific keys (like 'A' or 'B') to hide behind environmental objects to avoid detection by the crew and security drones.
: For non-Japanese Windows systems, users may need tools like Locale Emulator to ensure text displays correctly.
: The alien can evolve along several distinct paths based on player actions, acquiring new skills in categories like Strength and Intelligence .