It's a remake of GSC's critically acclaimed Cossacks, originally released in 2001. Featuring updated graphics and gameplay mechanics married with the classic feel of this Ukrainian classic, Cossacks 3 offers currently 16 nations (with 4 more planned) to take control of and lead to victory, 70 different types of units, and of course, large scale slaughter as up to 16,000 units can be present on the map.
