SEGA and The Creative Assembly have revealed a definitive version of Total War: Rome II titled Emperor Edition that collects "all free content to-date", and also features major revisions to the current retail release.

The definitive edition also comes packed with a new campaign expansion titled Imperator Augustus. What's more, this update will be completely free to current players as part of the game's next update on the day of launch.

The new ‘Imperator Augustus’ Campaign Pack adds hundreds of hours of sandbox gameplay across a new campaign map reflecting the geopolitical boundaries of the Second Triumvirate War. Players will determine the outcome of a vast civil war, which saw Octavian, Marc Antony and Lepidus vying to become the very first Emperor of Rome.

Alongside all feature updates from launch (including Twitch.tv integration, touch controls, new factions, new units and now the Mac version), Emperor Edition also features an improved politics system, overhauled building chains, rebalanced battles, and improved visuals in both campaign and battle.

“ROME II was far and away our most ambitious game," claims creative director Mike Simpson via press release. "We see more people playing, and playing for longer, than any other game in the Total War series. However, we take our players’ feedback very seriously. Through the multitude of improvements and free content updates we’ve brought to ROME II since its launch, we’ve worked hard to try and meet their expectations. We want Emperor Edition to be remembered as one of our finest games.”

The Emperor Edition of Total War: Rome II will drop for PC and Mac "soon", but you can learn more (including how to get involved in the beta) by watching the embedded video below, courtesy of The Creative Assembly.