How many factions can you unlock in Rome Total War

All of them if you can access the files.


Go to your C:/Activision/Rome Total War/Data/World/maps/campaign/imperial_campaign
and open the file called descr_strat using notepad.



It will look like this:
campaign imperial_campaign
playable
romans_julii
romans_brutii
romans_scipii
end
unlockable
Egypt
seleucid
Carthage
parthia
gauls
Germans
britons
greek_cities
end
nonplayable
romans_senate
macedon
pontus
armenia
dacia
numidia
scythia
Spain
thrace
slave
end
Now move all the factions except one into playable so it looks like this then save the changes and enjoy:
campaign imperial_campaign
playable
romans_julii
romans_brutii
romans_scipii
Egypt
seleucid
Carthage
parthia
gauls
Germans
britons
greek_cities
romans_senate
macedon
pontus
armenia
dacia
numidia
scythia
Spain
thrace
end
unlockable

end
nonplayable

slave
end

(Be careful - Playing as SPQR and clicking on the senate button will result in a crash...)