In example, Rise of Rome has the following:
Features
A comprehensive Digital Army Generator (D.A.G.) which allows you to design armies to a specific number of points and then take these armies in to single player against the AI or online in multiplayer. Making its first ever appearance on a Slitherine title, the D.A.G. is a powerful tool for any wargames addict !
New random battle generator using armies created in the army builder for single and multiplayer.
A new Line of Sight option. Games can be played with or without LOS. Hide battlegroups in terrain, behind hills or other troops. Beware of ambushes!
Baggage camps which appear in battle and can be looted for bonus points. Some armies are allowed to fortify their baggage.
Temporary fortifications such as palisades which can be defended.
5 New terrain types: broken ground, impassable terrain, open fields, plantations & steep hills.
So, unless I buy Rise of Rome I will not have access to any of that? Correct?