| [[File:Cossack portrait.png|250px]]|
'In-game icon of the Cossack'
The Cossack functions as the Russian version of the Hussar. Although they are somewhat weaker than Hussars, they are faster, cheaper, and only occupy one slot of population. This means that they can be produced in huge numbers compared to most other cavalry who take up two slots of population. With the proper cards and upgrades, a huge army of Cossacks can be used to overwhelm opponents. The most effective method to use them is to raid enemy Settlers and as a counter to enemy cavalry. They are also very good if used against Light Infantry and Artillery.
Cossacks are a unique Russian Cavalry Unit with good speed and decent Hit Points, but have no range. Cossacks do all their damage in melee combat. They are similar to but weaker than the Hussars of other nations, and a solid cavalry unit that is good at raiding, assaulting Artillery, and fleeing a losing battle.
When training Cossacks, it is a good idea to train a complementary unit, preferably one with range, than can soften up the enemy units before the Cossacks get close. Because of its incredibly cheap prices and the cards that they get to be upgraded, they can be counted as one of the strongest cavalry in game.
The Cossack can be upgraded to higher levels after the Colonial Age. They can be upgraded to Veteran, Guard or Imperial levels at the Stable depending on what age the player is in. Once Fortress Age is reached, the player can research Cavalry Cuirass from the Arsenal.
Veteran Cossacks are slighly better than ordinary Cossacks with higher hit points and better attack. Veteran Cossacks have the lowest rank but are the first major upgrade. They are available for 200 Wood and 200 Coin at the Stables once Fortress Age is reached.
- Hit Points: 270
- Siege Attack: 18
- Hand Attack: 31
Guard Cossacks are better than Veteran Cossacks in terms of hit points and the amount of damage it inflicts on a certain unit. The upgrade is available at the Stable for 600 Wood and 600 Coin once Industrial Age is reached.
- Hit Points: 337
- Siege Attack: 22
- Hand Attack: 39
The Imperial Cossack is the final and strongest form of the Cossack and is the successor of the Guard Cossack. Imperial Cossacks have double the amount of hit points and deals double the damage compared to an ordinary Cossack due to their high rank. The upgrade is available at the Stables for 1500 Wood and 1500 Coin once the Imperial Age is reached.
- Hit Points: 450
- Siege Attack: 30
- Hand Attack: 52