Where did you for this file? Identifying the source will help determine if it is a legitimate game build or a potential threat. Is horror game concept too weird? - Facebook

: ZIP files often contain .exe or script files that can execute malicious code if not from a trusted developer.

: Verify if you downloaded this from an official developer site. Many indie horror games use "Nightmare" in their title, such as "Nightmare" (a robot survival horror concept).

: Files with version numbers like "0.6" are common in the indie scene (often found on platforms like Itch.io or Game Jolt). If it came from a third-party "free download" site rather than an official developer page, it is high-risk. Recommended Safety Steps