If you are looking for the best "must-have" experiences, start with these:
: Widely considered the "definitive" Rome 2 experience. It adds incredible historical depth, new logistics systems (like supply lines and population classes), and hundreds of new, historically accurate units.
: Most large mods require a New Game to work properly. Installing a major mod in the middle of an existing campaign will likely break your save file.
: The "old school" hub for hardcore modders. This is where you’ll find deep historical discussions and beta versions of the most complex projects. Highly Recommended Mods