Paradox Interactive has today released a playable demo (download link) for Hearts of
Iron III, the long-awaited third installment of the best selling and
critically acclaimed World War II Strategy series. The playable
demo gives players a taste of what they can expect from the complete
game upon its release. Containing the Tutorial plus Single Player
Campaign of 1939, the Hearts of Iron III demo allows you to play as
either Germany, France, Poland or the United Kingdom for the first four
months of World War II.