Here is the full list of all 50 Commander: Conquest of the Americas achievements.
Built one of every warship type in a single game
3 different product factories in one city
Player has a total of 30 tradeships, atleast 3 traderoutes with 5 stops
Player has a colony in every colony spot
At war with all nations at once
Reached 25 000 soldiers on ships and in garrisons
Colonies in every territory
Palace level 3 built
1000 tons sugar to home port
Defeat 3 enemy nations
Get 10 million in the bank
Control 50 warships at the same time during a normal campaign
Player got over 100 ships
Conquer a total of 10 colonies
100% colony morale achieved
Palace level 2 built
Player has more than 100,000 colonists
1000 Trips to home port
Sank 40 enemy ships in a single game
Get 1 Million in the bank
Establish at least 3 colonies in area 1
1000 units of cigars imported
Discovered 20 empty colony spots in one game
1000 tons of gold to home port
1000 units of rum imported
Won a battle without taking any damage on any ship
Fought the 1st naval battle
100 Trips to home port
1000 units of resources gotten from Indians
20 years without fighting
Completed the Getting Started Tutorial
Palace level 1 built
Passed the 1st 5 years in the game
Sold 1st cargo
Established 1st colony
Player concluded the 1st diplomatic negotiations
Successfully capture 10 ships with boarding action
10000 Trips to home port
50 attacks from Indians
Allies with all other nations
Built every single ship in game
Played 10 tactical battles with "Sunset" as the time of day all during one campaign
Hit one enemy ship, range 2000 or more
Built one of every tradeship type in a single game
Declare war 20 times
10 colonies founded in a single game
Sink 20 pirate ships
Player has 5/4/3 colonies in area 4 (easy/normal/hard)
Win 20 tactical battles without losing one ship
Visit 5 ports with at least 200 colonists onboard from your homeport and then return home.