The mod that allow you to increase the party size, PARTY LIMIT BEGONE, has been out for months and it's extremely reliable.
And yes, the game becomes convincingly BETTER and more enjoyable with it, if you accept that this also knocks the difficulty down a notch, too.
The only remaining issue is that the game does not offer any option to modify the party formation and the default one is pretty fucking awful.
I got this mod and installed it on Vortex, but it doesn't work.
There was no problem with installation, and I can see no reason why it doesn't work, and no one at Nexus has answered any questions about it
Anyone have any ideas here?