Some popular games have had Hetalia-themed versions made. At the moment there are Karuta and Reversi, both put out by Movic.
Both have a retail value of 3150円 ($42).
Second-hand, the Karuta set can range from 1000円 ($13.33) to 4000円 ($53.33). A value for the Reversi game isn't currently known, but can be assumed to be similar.
A Hetalia-themed Karuta set was released November 26, 2009.
The game comes with a CD featuring 46 voice clips from the first season of the anime. The voice clips and the yomifuda contain the same quotes, so either can be used. The torifuda are all stills from the anime, matching the scene each quote is taken from. As the game is set in Iroha-garuta style, the top left of each torifuda also shows a hiragana, so no mastery of the anime is required in order to play.
The CD, and thus the deck of yomifuda cards, contains quotes by Italy, Romano, Germany, Japan, America, England, France, China, Russia, Chibitalia, and Holy Roman Empire. Hungary, Lithuania and Switzerland also appear in the torifuda cards.
Macaron ReversiEditA Hetalia-themed Reversi set was released on December 15th, 2011.
It's a smaller board than the classic game, measuring 27x27cm and having only 36 pieces. Along with the December release date, it has a Christmas theme as well. The piece are shaped to be macarons, with green and red sides.
The characters currently known to be included in the game are Italy, Germany, Japan, America, England, France, Russia, China, Spain and Romano.