I don't have the game, but wasn't Steam Cloud supposed to be supported as of about eons ago?
Talk:Dead or Alive 5 Last Round
According to SteamDB it's set up already
Then why was this changed to false?
Is this like some kind of physics engine?
Better a late answer than none at all I suppose. Soft Engine is a hybrid graphics/physics engine designed to make skin textures appear more natural, or "softer", including the movement of them. From my recollection it utilizes DX11 with some lighting features and a physics engine component - in some aspects it makes them appear "blurrier" up close which might have been useful on the pc version with some extra AA, but I digress.
The other neat little feature (that the PC version doesn't have IIRC) where to be clothes tear (IIRC it was Senran Kagura (DLC) costumes only? I forget) due to some DX11 particle effects (setting breast motion to None/Natural disables the tearing). To tear clothes you had to hit with a critical burst, power launcher, power blow into a wall, hit an exploding surface (wall or floor) or a special danger zone - special power blow danger zones/train in Street etc.. Whether that's part of the Soft Engine or relies upon it is its own debate.
The two missing stages also use DX11 features if I recall, which is why they aren't in the arca... I mean the PC version XD. They could have kept DX9 compatibility if they wanted with extreme ease - they just didn't port the DX11 changes for some reason.
Heh, breasts physics engine.
That's a way more detailed answer than I thought I would get.