The Rootscankit labelled SpaceEngineers.exe (the executable to launch the game Space Engineers) as malware. Detecting it as UDS: DangerousObject.Multi.Generic, Kaspersky quarantined the file.
After trying to launch the game via Steam, Steam stated that the very same file is missing and that thus the game cannot be launched.
This prompted me to believe that this is a false positive. I have over 1900 hours in this game over the last 5+ years. If it truly were malware, it should’ve been detected long ago.