Is this real or just a joke?

It looks like it's unfinished...

I  found this on my dad's old laptop and it's pretty creepy.

Surprisingly, I was able to transfer the file to my computer in order to find out what was in this zip file, to my surprise there was a game. At first I thought it was a joke, but I actually managed to launch and play it!

I couldn't get past 3 locations, maybe you can ¯\_(ツ )_/¯