Beer and Pretzels Ironclads by Buck Surdu, available from Old Glory
One of the games is recorded by a fellow blogger whom I remember as being a really good sport, his review can be found as this link. https://misternizz.wordpress.com/2011/07/08/historicon-2011-first-day-second-day/
One of the 2011 Historicon Games, probably up the Yazoo river.
The game scales up well with other scales, in fact on the closing night of Historicon the Philadelphia Rogues held a very large and spectacular drunken ACW battle (shows are way more fun in the USA!) in 15mm using Fire and Fury rules for the ground element and 15mm scale Ironclads by Old Glory using Beer and Pretzels Ironclads. As the confederate Admiral I was soundly whipped by the Union.
15mm drunken Fire & Fury with Beer and Pretzels Ironclads is not for the feint hearted.
Following Historicon I had acquired by own fleet of 1/600 scale Ironclads by Mr Peter Pig and spend most of my emergency on call shifts during the 2012 London Olympic games painting them in the office. Peter Pigs range is excellent value for money and covers the whole variety of the ships from that period, they scale well with Thoroughbred's offerings. I also stumbled upon Terrain Mat ( http://www.terrainmat.com/ )who make excellent coastal mats and terrain. This game took a hammering over 2012 and 2013, looking back they really were fun games to play so I may dig the collection out again for a long overdue airing.