I also want to say that it doesn't need to be some kind of divisive thing that Vein and 7D2D can both have appeal and it's not some kind of 'One game is right and one game is wrong and people that like the wrong game are dumb and chew on marbles' situation.
Vein is a nice diversion and it has plenty of potential, we should all wish the devs success in making something fun, one day we'll know how big of a thing it gets to be.
But 7D2D got into the general space first and as great as it is now, when it reaches its "It's finished. Like, really finished. Like, have at it modders, we wont jank-up your efforts, finished." That's when the possibilities in 7D2D look.. well to me it looks like a holy freakin' grail of apocalypse simulator.