so the first time I unpacked it I had no issues,, played it for abit and shut it down.  When I tried it later on windows deleted the executable!

 Said it was a Trojan:Win32/Bearfoos.A!ml...... whatever that is.

Since my machine survived the first playthrough I added it to my safe list..
 playing through now.
I must say,, the art you have made for this is fantastic.  I love the look of the game.  For myself Id say this is likely the best looking EFPSE game,, well done.  This makes me veryinspired to mess about.  I was thinking of creating some special 
meshes but what you have done has made me realize that simple works just as well!