Errrr, description and forum thread confuse me. And VNDB just gave me more questions.
So, if I understand this correctly:
1. The numbered titles are all merely in the same setting, not sequels of each other?
2a. The "if" title's arent "if" and its just their way of "numbering" sequels?
2b. Or they are "if"s but change the story up, yet keep the overall plot like they did with Hyperdimension Neptunia Re:Birth?
1)There are three different stories narrated in the games, two of them taking place in the continent of Eurodia (that resembles Europe in the XVII century) but in different times, and the MC changes (but basically is the same funny paizuri-lover kinda guy), and one in an alternate version of the Roman age.
The exact sequence is:
- Funbag fantasy (Kyonyuu fantasy)
- Funbag fantasy: sideboob story (Kyunyuu fantasy Gaiden)
-Funbag fantasy: sideboob story 2 (Kyunyuu fantasy Gaiden 2)
These, plus some DLCs, are games where the MC is Lute Hende
Then there is Funbag fantasy 2, set 150 years before the events of FF: sideboob story 2, and Funbag fantasy 2if, basically the same story but with more busty ladies willing to give you pleasure because it just is.
Then there is Funbag Fantasy 3 and 3if. Those are the ones in the Roman age, you're a paizuri god that need to get famous in order to become powerful and seduce the goddesses. Just like the others, "3if" is just an alternative version of the other.
2ab) I didn't play the game you mentioned, but I think in this case it's just a way to tag such stories, they just about the same, with slight changes and more girls involved. Just like the VNDB site report they are not in the timeline, but are set in an alternative universe of they own. Nothing to lose your mind about in my opinion, really.