Spartacus Legends – XBLA: Free-To-Play

Trudge your way through grueling training as you take the steps towards being the greatest gladiator that the world has ever seen. Engage in brutal combat in the arena, fighting to the death against vicious competition, looking to rise through the ranks and become a Legend of the arena. Become a Lanista, build your very own Ludus and relive the gladiatorial age in search of eternal glory found on the battlefield.

Manage, train and equip your gladiators for victory as you select from 8 different fighting styles and 1000′s of weapons and gear combinations. Customize your gladiator to be the ultimate warrior through the robust skill system then apply your skills to mercilessly dismember your foes.

Online leaderboards take the action to a whole new level as you seek to forge your destiny and fight for your house honor for Worldwide prestige.

Key Features
Intense Visceral Combat: Partake in some of the most brutal, action packed battles ever put in a videogame, where you will fight and DIE for the honor of your Lanista.
Online & Couch Multiplayer: Climb the ranks of the online leaderboards by beating your friends, your enemies & the best players in the world.
Weapon & Gear Customization: Upgrade your gladiators with the most ruthless weaponry in the world, to take on the opposition and unleash madness.
Lanista “Manager Like” Gameplay: Train your gladiators with over 8 different fighting styles & choose from thousands of weapon combinations to build the ultimate warriors.
Play 4 Free (TBD): Experience all of the world-class combat of Spartacus for Free! Simply download the game and get into the action. With our micro-transaction model, you choose the destiny of your Ludus and the eternal glory of your gladiator.
Weekly Challenges: Experience iconic weekly challenges for a chance to get on the global leaderboards and showcase your skills to everyone in the world.
World of Gladiators: Immerse yourself in the world of Gladiators and battle in some of the greatest arenas of all time.

ITS ABOUT GODDAMN TIME! i love that all the arenas look like the ones in the show.

There is already a free to play game on XBL called Happy Wars, it's classed based and kind of reminds me of Battlefront 2.

why do i care about that game?

Free game, wasn't sure if you were asking about free 2 play games or just the Spartacus game in general.