Weird, I myself get antivirus alerts which MAKES NO SENSE!
And I also PACKED the pck inside it so I don't know why it does not start up without it.
Anyways I have uploaded the .pck file.
Viewing post in Space Ignition jam comments
It might because you packed the pck file inside of it that it doesn't like it. I was able to open it and play a little bit just now. I got to the part with big floaty heads and killed them all, but when I went to the rocket it seemed to crash. Also, not sure if this was intetional, but the tank appeared as a untexture cube. Let us know when you get the file thing figured out. I'd love to give it another whirl!