Sega’s PC strategy game Total War: Rome II is getting a new expansion, and it’s coming soon. The Wrath of Sparta expansion, a brand-new campaign add-on, will arrive on December 16.

Set in 432 BC during the outset of the Peloponnesian War, Wrath of Sparta represents the earliest time period that the Total War series has ever seen. Here’s how Sega sets up Wrath of Sparta:

“As the legendary warriors of Sparta are called into open conflict against an arrogant Athens by scheming Korinthos and Boiotia, Wrath of Sparta challenges you to dominate the Hellenic world. However, while the City States vie for control of their homelands, across the Aegean Sea the vengeful Persian Empire watches its old foe closely…”

The Wrath of Sparta map will features a “highly detailed” ancient Greece, as well as Greek Island and the Ionian Coast. It will also include new tech-trees, battlefield and naval units, “great wonders,” and iconic Greek heroes. Overall, Sega says the expansion will deliver “hundreds of hours” of gameplay.

For more on Wrath of Sparta, check out the video and image gallery below.

Beyond the Wrath of Sparta expansion for Rome II, developer Creative Assembly is also working on a brand new Total War title called Total War: Attila, which launches in February 2015. The London-based studio is also at work on spinoff Total War Battles: Kingdom, announced just yesterday.

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