The Igor K. is based on a typical contemporary Russian tugboat, and was released as an add-on vessel in both ship simulator games. This type of conventionally driven tugboat is mostly used for small jobs in harbors and on rivers. Because of the ruggid design and great durability of this class, these tugs can also perform their tasks in an icey environment. She's about 30 meters long, 9 meters wide, and has a draft of about 3.5 meters. The top speed is around 12 knots.