Very briefly, as sleepy, and in a hurry.
Totally can count as fanfic. a) A game with enough of the right material counts as fiction. This totally will, I think. b) Even with original intellectual property, a game closely enough inspired by another can be considered fanfic. (C&C and Dune II doesn't exactly work as an example, but it is close.) c) Unless and until this part of the project gets very big, I suspect Bob will be willing to accommodate the individual variations that may take the overall project outside the category of fanfic. d) depending, some of my own or others fanon, which may be mentioned in thread, may count as fanfiction.
Totally can count as fanfic. a) A game with enough of the right material counts as fiction. This totally will, I think. b) Even with original intellectual property, a game closely enough inspired by another can be considered fanfic. (C&C and Dune II doesn't exactly work as an example, but it is close.) c) Unless and until this part of the project gets very big, I suspect Bob will be willing to accommodate the individual variations that may take the overall project outside the category of fanfic. d) depending, some of my own or others fanon, which may be mentioned in thread, may count as fanfiction.