If you’re new to the series you’re probably thinking, “that sounds like a lot of work, and a lot of money, just to play Immortal Empires.” And you’re right. Secondly, you’ll need the original Total War Warhammer and its DLCs as well.
But to unlock the entire roster of playable factions, you’ll first need to also own all Total War Warhammer 2 DLC packs. Owning the game will give you access to its base factions in Immortal Empires. To access the Immortal Empires map in Total War Warhammer 3 you’ll need to own Total War Warhammer 2 on the same platform. Immortal Empires combines all the content released throughout the Total War Warhammer trilogy into one gigantic map. Especially the Total War Warhammer 2 DLC packs.
Provided you own the first two entries and their DLCs. Once the Immortal Empires map launches, there will be several dozens of factions to choose from. That’s already more than what most grand strategy games let you access but, believe it or not, it’s just the beginning. Total War Warhammer 3 brings to the table eight new playable factions.