Likely not. But I haven't tested it.

save game compatible?

Thanks! I'll try that

As stated before I don't have time right now to make other submods and keep them up to date. I am also not familiar with Barbarian invasion modding but I'll try my best to explain it.

Below is the link to a github which will let you make your own 4TPY script. First, find the folder for your relevant mod then go to data/world/maps/campaign/barbarian_invasion. If the file "campaign_script.txt" is not there, create it and add the code from the github.

https://github.com/Dagovax/Rome-Total-War-Tools-and-Features/blob/master/RTWMultipleTurnsPerYear/4_turns_per_year_script.txt

Great job! Can you please make a 4 tpy submod for Mundus Magnus Barbarian Invasion?

Thank you! As far as I know there are no unified Rome submods and unfortunately I do not have any time to make one. Sorry

Cool submod! Btw are there any submods for the unified roman faction? I would like to do that but I suck at modding :D I saw one in the workshop but it does not work with Mundum Vincere :(