Smaller Mods
Smaller Mod list, these mods I have selected as being good for mixing up with others to create Mixed Mods. They are all quite similar to Vanilla Rome, but with minor alterations. Modder's names are given in the linked threads or download pages, you may wish to ask permission to use any of these in a mod.
Dismounted ScythiaGives scythia a better runit roster, adding infantry to the faction.
ThreadRise of EtruriaMerges the romans into one faction, adding the Etruscans into the game.
ThreadAndalus' Additional Unit PackGives new units to many factions, including some not released in vanilla rome.
ThreadRoadwars!This gives a roman civil war from the start and highways in every province - a major benefit to cavalry armies, and one which speeds the game up a bit,
Roadwars DownloadUnified RomeDoes, as it says on the tin, unify rome into a single faction, giving you three slots to play around with.
DownloadAll Factions PlayableThis mod enables you to play all factions in the Imperial Campaign and also ads maps and descriptions to the new factions.
DownloadMicromods
This is just a database section for really tiny (1-2 files) mods that people have made. They are all free for use in your own mods, but you should credit the modders as below.
Cities AliveA mod for RTW 1.5 that gives the cities a vastly expanded range of city walkers, just to make your city views more interesting. Credit; Jubal
Walls of JerichoA mod for RTW 1.5. This make sieges generally more fun by giving different rams to each faction and increasing flammability of all buildings other than walls to full (doesn't affect the gameplay, but makes the pyrotechnics WAY better if you happen to have some onagers on flaming rocks) Credit; Jubal