There were 2 main reasons I was very interested in this game when I first heard of it's release:
1. I love the film Troy, and the story of Achilles.
2. I am a huge fan of the Dynasty Warriors series by Koei.
Really, this game is massively directed at people who fit the above 2 categories.
I have always compared Achilles with the Dynasty Warriors legend Lu Bu. Both the best of their time, both served rather fat and incredibly arrogant, ambitious rulers (Agamemnon and Dong Zhuo) and both suffered their downfall by falling in love with a servant girl/handmaiden (Briseis/Diao Chan).
So when the opportunity arose with this game to play out the legend of troy in the hack and slash thriller style of the Warriors series, I was thrilled! and for me personally, it did not disappoint. (and now even better that I can play as them both at the same time, on the same team on the same battlefield in a Dynasty Warriors style game called 'Warriors Orochi 3.')
I was surprised at a previous review on here that criticized the game for not having enough strategy and role playing, and for being nothing more than a button basher. This is probably due to the fact he had never experienced any Dynasty Warriors or Samurai Warriors games before. The game is true to the series, hence why it is called " 'Warriors': Legends of Troy " rather than just Legends of Troy.
Basically, the idea of the game is you fight as a famous warrior on the battlefield, slaying hordes of enemy soldiers to assist your allies and win the battle. The game allows you to interchange character at each stage as you progress through the story and play out key battles each hero was involved in.
In comparison to the film, the similarities are uncanny, some of the characters have a familiar look to those in the film (Particularly Menelaus and Achilles) and the stages have similar look about them, which, for those who have seen the film, gives a familiar feel for the history of the game. Also, that move that Achilles does when he runs up and sticks his sword through the neck of the giant enemy general at the beginning of film, you can do that...:)
The story is told more from the perspective of Greek mythology unlike the film which tells it from more of a historical context, but the main events of the campaign are the same, with just a few differences in how the story is told and progresses. (like the fact that Patroclus is actually a half decent fighter)
The gameplay allows you to purchase upgrades for your character in between battles that allow you additional combo moves, much like unlocking a better weapon did in the old dynasty warriors games, power up your stats like attack and defense, or have special effects like making your allies stronger. these can then be passed from hero to hero as you progress the story. The battle play also has the same feel to it as the dynasty warriors series but with a twist, a certain difference which is hard to explain but extremely satisfying, in the fact that the battle is visually much more graphical and bloodthirsty, with punishing finisher moves where you stick your sword through the enemies head, and watch spots of blood hit the camera as you send your sword through the spine of an unsuspecting Trojans back, which dynasty warriors has never had. in that way, the battle feels more realistic compared to DW and is much more like the film 300. The game does not have much re-play value other than for those like myself that just want to live out the battles of ancient Troy again and again.
Overall a good fun game to play for lovers of battlefield action and Trojan History.