I've finished Redemption, and frankly I'm not sure it deserves the effort
. Sure there are some things that were great at the time, but the voice acting is hilarious, the Disciplines are an unbalanced mess and most of the levels lean heavily on the repetitive side.
My advice - try it, I run a buggy Windows 8.1 and I had no problems with it. You should be able to play it. In the end it's DnD with vampires with corny accents 
I have the game and it is a shame to say that it didn't age really well. Also, it does deserve some effort since it is a "Vampire the Masquerade" game after all.(Though not as much as Bloodlines) All of those mistakes could be fixed after the game is ported to unity. Porting the make and making Redemption more like Bloodlines would be great. Bloodlines is a much better (not to mention much more awesome) game in my opinion, but it didn't have some of the awesome things Redemption had. (Probably because of the time constrains and because of the half-arsed version of source engine)
I mean, the maps themselves doesn't look half bad:

(Day pictures to give a better idea how the maps look):


Setting looks just great:



Anything else, including repetitiveness and bad voice acting could be fixed after porting the game.
I mean, what more would one want in a game? (I am asking, because those too can be added/fixed after the porting)

Anyway, i am not saying this game should be ported right now anyway, but maybe sometime after the Project Vaulderie gets released, why not? It should be a possibility at least..