Should I buy this if I dont have the other Stanley Parable? Yes
What about if i've played the first? No, its not as mind blowing as you think

After waiting for a few years, delays and well made trailers, I think this "Ultra Deluxe" edition is boring, most of the work was to port this game into the Unity engine so it could easily be ported to consoles

This game should have been sold as a DLC for the other game, I dont think there is enough content in this game, even if it isnt fully considered a sequel. Yes I had fun with it, but after playing through some of the same endings, new stuff and the epilogue, only took around 4 hours, too short.

Should I buy this if I dont have the other Stanley Parable? Yes What about if i've played the first? No, its not as mind blowing as you think After waiting for a few years, delays and well made trailers, I think this "Ultra Deluxe" edition is boring, most of the work was to port this game into the Unity engine so it could easily be ported to consoles This game should have been sold as a DLC for the other game, I dont think there is enough content in this game, even if it isnt fully considered a sequel. Yes I had fun with it, but after playing through some of the same endings, new stuff and the epilogue, only took around 4 hours, too short.