Harbor Master is a strategy video game developed by Imangi Studios, LLC for iPhone, iPod and iPad. The video game is can be downloaded for free from iTunes and can be used on the devices listed above as long as they run iOS 3.2 or later.http://itunes.apple.com/us/app/harbor-master-hd/id363658120%3Fmt%3D8#

Harbor Master HD is the iPad version of the game which was released on March 31, 2010 in U.S. and was rated 4+. On September 04, 2010, Harbor Master was updated to version 1.4. According to iTunes, Harbor Master received positive reviews from CNET which placed it in the Top 20 Best iPad Games.http://itunes.apple.com/us/app/harbor-master-hd/id363658120%3Fmt%3D8#

As the name says the player assumes the role of a harbor master who’s duty is to direct the boats to the docks. His task is to avoid any collisions between these boats and to make sure every boat reaches a dock as fastest as possible. The gameplay is similar to the one experienced in Flight Control HD, but this time the player controls boats not aircrafts. http://itunes.apple.com/us/app/harbor-master-hd/id363658120%3Fmt%3D8#

The HD version of the game features a new map, larger than the others, known as Treasure Island. In addition to this the player can acquire 4 additional maps, for which he has to pay. Harbor Master HD offers the multi-touch support that can be used by two persons to play the game on the same device. Each player has the chance to tweet his high-score and post it to the online leaderboards.http://itunes.apple.com/us/app/harbor-master-hd/id363658120%3Fmt%3D8#

Players can also purchase rewinds from iTunes. These rewinds allow them to turn back the time in the game and to correct any mistake they made while playing a level.http://itunes.apple.com/us/app/harbor-master-hd/id363658120%3Fmt%3D8#