Heroes of Newerth is a RTS MMO Game with gameplay inspired by DotA.
Heroes of Newerth is a game based largely off the Warcraft 3 custom map DotA, nothing original or something like. If you ask me it's a total disaster and a tremendous waste of resources and money.
The concept is as simple as it always was: take control of your hero, on a team of up to five players, against the opposing team in an effort to destroy their central structure first. Kill creeps and heroes to get gold and experience, and then use them to level up and deck yourself out with buff items.
Overall if Heroes of Newerth raminea a pay game and would not have walked in free to play era, has never been any loss for any of players out there willing to play it.