Cossacks 3 is a real-time strategy video game for Microsoft Windows made by the Ukrainian developer GSC Game World. The game is a remake of the 2001 classic and is once again set in 17th and 18th century Europe. The original 12 nations make a return, as well as 70 types of unit, 100 technologies, and over 140 historical buildings. The game features support for up to 8 players (1 more than the original) with armies numbering in the thousands. Revamped game mechanics, a vast selection of unit types, ranged and close quarters combat, terrain bonuses, and a realistic ballistics engine provide the player with an unlimited number of tactical opportunities against both human and AI opponents. The game also reintroduces the flexible customization of random maps.