To maximise N, we need to maximise exposure of the game. Ads, appearance on Steam, GoG, Origin, Microsoft Store (these are disgusting places but are quick to get views). More involvement in alternatives.to, appear more on recommended lists etc. For example you can advertise as free alternative of AoE
f1 is quite big imo, the media to the outside world does look attractive. We just need to make sure the description is pristine in every software store: Gnome Softare, KDE Discover, Flathub, Snap, ...
f2 can be increased by making the download easier. I think in the main website, the https download llink could be made more obvious. You can even put the https download link in the first homepage with big attractive button around it. Maybe more modern design as well to make it look like a well maintained legit project.
Also the download size is way too large, 1.32GB! Can we cut that down a bit? E.g. on Linux we separate the data from the base engine, can we do something similar in Windows?
f3 is small and is something we can work on. I think the pregame page could be redesigned to guide new players better, e.g. by having large buttons for tutorials and guides in the middle to really emphasise where someone should click.
The tutorial could use some improvement, for example not too much text. It really tests the patience of players. Use short sentences, 1 thing per page. We can even break up the tutorial into bits.
The default settings could also be improved. The AI is set to medium by default. Petra is too aggressive. By default, it should be Easy + Defensive to ensure that the new player has time to explore before getting smashed. Experienced players know how to adjust settings so it's really not a problem for them.
f4 is really dependent on how well f3 is received and whether the individual is into the RTS style. Not much we can do. But we can always say something like "there is so much more that you can explore!"
f5 -- at the end of some hard campaign we can recommend them to join the lobby. Or, after they smash the very hard AI for the first time, we can do a popup message that says "Congrats! You have passed the trial, now you are ready to play with other humans!"
f6 - we can add some social guidance on the lobby page. Some comforting messages like "try your best" "enjoy" "it's ok to loose" "don't give up" "have fun" , not the current harsh ones. Also it's important to explain to them not to try to join OP TGs on their first game as it won't be fun for anyone.
q can be minimised by fixing some bugs and other problems. But that's really another story