Yes. Our goal is not to harm you by putting a virus in this program, but
you get a great experience playing the old MSP.
If you get an alert message from your anti-virus software, it is simply that MSPRetro is not
a known program.
You can view the analysis of VirusTotal for
Windows
and
MacOS
here.
If you still don't trust MSPRetro, you can run the game in a virtual machine, or
build it from the source code.