Well this is a bummer, i am playing on virtual machine and had to specifically download program just to unpack that RAR. And then it said it needs to download additional visual c++ support and directx runtime xD And because i am playing on virtual machine i didnt have enough space to download and install all that, so i could not really play it (not leaving any review then sadly :/) I would suggest to atleast use zip next time :D And is it not there some self-contained support in UE?
EDIT: Ok i was actually able to unpack it finally. Nice game you got there xD Liked the music, and would maybe add a little vfx to the shooting. But otherwise chill experience.