You've exactly missed the point.
Standalone means that original game is not required to play such add-on. So, you're partially right - it's standalone product, but we can't to name it this way, because it's almost the same product plus it has some large and significant new features.
Standalone add-on is basic term in computer games industry.
For example:
www.pcgamersworld.com/2011/02/painkiller-standalone-add-on-redemption-for-february-25th/JoWooD Entertainment has set the release date of the official Painkiller Standalone Add-On „Redemption“ for February 25th 2011.
On-topic:
CCD 1.2 = CCD 1.0 + new features that I've already listed.
Cost of the
CCD 1.2 for
new users, who
didn't buy the
CCD 1.0 will
25$.
Cost of the
CCD 1.2 for users, who've
already bought the
CCD 1.0 will
5$.
CCD 1.0 is
not required to play
CCD 1.2.
I hope, I've explained it more clearly this time.
Thanks Kivlov for clearing this up. This does make more sense now.
Any progress on performance optimization maybe? This is the only issue that kills this game for me to be perfectly honest.