- Hajduk (available in the Gunpowder age; they replace Bandeirantes)
- Pancerny (available in the Gunpowder age; they replace Conquistador)
- Elite Pancerny (available in the Enlightment age; they replace Elite Conquistador)
In Classical Age, Polish develop (along with several other nations) Barbarian Archers, Barbarian Phalanx and Barbarian Javelineers instead of Archers, Phalanx and Javelineers.
In Industrial Age, Polish develop along with all other nations Light Bombers and Zeppelins, that provides aerial bombing capability in that era for each nation.
Update: I added Siege Ships in Classical and Medieval Age to the Dock and Nuclear Missile Subs (Information Age) to Chinese and Russians.
How to install: unzip the Polish.zip folder into your RoN mods folder.