Unit-ship:Cargo Ship/Costs

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Costs
Cargo Ships are purchased at the Trading port. (with Cultural Exchange research)

Each Cargo Ship you buy with gold costs more than the previous one. Each Cargo Ship you buy with ambrosia starts off at the highest amount and each additional one costs a little less than the previous one.
 * There are 180 that are.
 * There are 40 that are.

Formula for purchasing Cargo Ships using Gold (1 – 180):

$${S_n = 3 \times \lbrack 4,500 \times 1.03^n - 4,475 \rbrack}$$

Formula for purchasing Phoenician Merchant Ship using Ambrosia (1 – 40):

$$S_{n} =\begin{cases} -3\times n+77, & from\ 1\ to\ 4\\ -2\times n+73, & from\ 5\ to\ 16\\ -n+57 & from\ 17\ to\ 40 \end{cases}$$ If you look at the image to the left, this player has 3 Cargo Ships:

0 of 72, from Friends not available since Lobby introduction 6 per friend with a maximum of (6 &times; 12 = 72) Cargo ships 0 of 2, from forms of Governments (Dictatorship or Oligarchy) 0 of 12, from the Daily login bonus 1 ship per each town you own, maximum of 12 ships

3 of 180 that are Gold 0 of 40 that are Ambrosia
 * Notes :
 * 1) You can purchase up to a maximum of 180 cargo ships with gold.
 * 2) You can purchase up to a maximum of 40 Phoenician Merchant Ships with ambrosia.
 * 3) You can gain up to a maximum of 72 extra cargo ships, from friends that join the game through the "Invite a friend" link and they are 'active' not available since the Lobby introduction.
 * 4) You can gain 2 extra cargo ships from changing your Government to either Dictatorship or Oligarchy.
 * 5) You can gain 12 extra cargo ship from the Daily login bonus.
 * 6) Cargo ships gained from friends, Governments or the Daily login bonus do not increase the cost of what your next purchasable cargo ship will cost, had you not have received the extras.
 * 7) * This will allow you to have a maximum of 306 234 cargo ships. __NOWYSIWYG__

Purchasable with gold
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1 - 20
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21 - 40
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41 - 60
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61 - 80
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81 - 100
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101 - 120
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121 - 140
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141 - 160
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161 - 180
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Purchasable with ambrosia
Cargo Ships purchasable with ambrosia

Requires: Cultural Exchange before you are able to purchase this type of Merchant ship.

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181 - 200
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201 - 220
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Free
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221 - 240
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 * The maximum number of Cargo ships is now 234, because with the introduction of the Lobby, the ships gained from Friends are no longer available!



241 - 260
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261 - 280
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281 - 300
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301 - 306
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