Game covers battle of Lake Peipus (also known as "Battle on ice"). This was a battle between the Republic of Novgorod and the Livonian branch of the Teutonic Knights (whose army consisted mostly of Estonians) on April 5, 1242, at Lake Peipus. The battle is notable for having been fought largely on the frozen lake. Game contains board and 128 counters, along with one scenario. It was published in 34 issue of "Taktyka i Strategia" magazine. Game uses "Średniowiecze" system rules.