Whelp, Undertale wont run

On Steam XD

and yes, I already tried extracting the exe files with Winrar. I don't even get the option, and manually changing to file extension to .rar wont open it either, it says it's corrupt.

And yes I've reinstalled.
Yes, I've verified the cache files xp

I just click on "Play", it says it's opening, buuuut nothing.

So much for the stream idea! :'D

(Okay no, I actually wasn't going to play it right now XD Just wanted to open it and stuffs, MAYBE to do a stream later but I dunno. I'm still not too sure about playing it xp )

_{Aaaaand the moment i tried opening it, I got 3 people from school questioning my life decisions apparently XDD
Lol no. Only 2 of them acting all surprised, with the third telling me to install warframe XDD}