World War. Its a MMO game which is played by millions of people everyday. You can battle with other players live. A good story mode of 2012 nuclear war which will create history.
Try it once, also, angry birds is the best current game, but not an "action game" though.
The world makes way for the man who knows where he is going.
Star Legends is pretty good. Its a sci-fi mmo and I can confirm it works on the Optimus V. Its not like the traditional MMO where you just take turns hitting eachother with sticks, and you wont spend an hour killing the same monster over and over just to progress. Ive only played to level 15 though so I'm not sure if it slows down later.
I liked the game play of Heroes Charge, but the character design was pretty awful.
Did some digging and found out a number of things: primarily that Heroes Charge was stolen from Lilith Games (as in, they literally stole the base code and released it), and then was subsequently sued both for stealing the game and also character designs from DotA and League of Legends.
On the brightside, I also found out that a company will be publishing Lilith's game legally under the title of "Soul Hunters" and that it should be launching relatively soon without all the terrible rip off characters.
Gameplay should be up your action/rpg alley, and the company should be launching a pre-release registration campaign, so check it out if you're interested.