I know we don't have a VN database yet and it's not planned for the launch of V3 unfortunately (although wish it was). But want to give some suggestions before I forget.
1) Can we please have an option to mark route and chapter completions? As with VNDB it only goes from playing to completed or dropped, so don't know how far you got before you dropped and so when you're playing people can see your progress. I know with Steam it showed my progress and how many chapters I've finished with regards with Harmonia, which as a kinetic novel, so something like that would be nice. Plus obviously have a separate library for VNs
2) Can you please have a Steam button showing if the VN is available on Steam or not (maybe try form a partnership with them if that's possible?) or if there's a physical release have the amazon button showing, something like that. Promoting if the legal forms are available and where to get them would be good for the site and give it a good reputation. Should make it easier for partnerships in the future.
3) Have staff and cast pages plus also have them on the VN page. Also same format with the covers and reviews would be great. Plus a Most popular and highest rated section for the explore section, and also recommendations.
4) An adaptation section for manga and anime adaptations of them. It's nice knowing if it has an adaptation or not, plus for anime, it's nice being linked to the original source material (in this case VNs) so can see which is the superior product and should watch/play first.
Will update this when I can think of more suggestions (forgot some I was going to mention). Really hope you start working on getting VNs into the database once V3 is out as that was one of the features that were listed as planned like 2 years ago (in Nucks thread of planned stuff to do). Also would be the next great step for HB making it even better by having Dramas, Live-Action, Anime, Manga, LNs and then finally VNs to make it complete. Sort of a mixture between VNDB x Steam x Hummingbird would be best to make this site the best place to track VNs.
Steam Examples: http://store.steampowered.com/app/421660/ and http://store.steampowered.com/app/324160/ (will take a screenshot of the Steam app later with the VN completion section)
VNDB Example: https://vndb.org/v13774