Board Thread:Dragon City Questions and Answers/@comment-2.227.163.88-20130529131850/@comment-10386987-20130603181610

For those who like math here are the calculations:

If you have 12 huge food farms, the maximum ammount of food you can collect is 50,000 by farm, this by choosing the option of star shines crop, which is harvest in 2 days. So if you have 12 huge food farms, you can collect 50,000 (12) = 600,000 of food every two days (or 300,000 of food every day in average without collecting int).

Each star shine crop gives you 2.5 M points of experience, and with 12 huge good farms you could get maximum 30M EP every two days. Now, you need 1,747,644,305 experience points to get to 51 level (difference between 2,016,089,205 EP required for level 51 and 268,444,900 EP required for level 50). So, dividing that quantity by 30M experience points that you can earn by collecting 12 star shine crops every two days, you need 58.25 pair of days (which is 116.5 days or 3.88 months assuming 30 days month) to get to level 51.

Can you imagine that for 116.5 days you have to do the same process? (fortunately every t wo days) So now think how much gold you need every day. Each star shine harvest costs 5 M of gold and for 12 huge food farms you would need 60M of gold every two days. How can you collect that?

First you need an habitat with the most gold collecting capacity, or maximum level of gold collected. This is the legendary habit, which can collect 750,000 gold. Fortunately, the legendary dragons (not mirror, wind or crystal, which are much slower) collect gold very fast (they are the fastest in that matter). If you have a 30 level legendary dragon, you can collect 820 gold by minute. So, the legend habitat is full of gold in 914.6 min (750,000/820) or 38.1 hours.

The big question arrives now: how many legendary habitats with 30 level legendary dragons   do I need? If you need 60 M of gold every two days, and if each legendary habitat with 30 level legendary dragon is full of gold in 38.1 hours: first, divide the 60 M gold required by 750,000 gold collected by legendary habitat, so it would be 80 legend habitats, which is more than the maximum number of habitats you can get, which is 38. But if each habitat is full in 38.1 hours, you can collect more than once a day: Every time is full you can collect the gold. Suppose every habitat you have is legendary, and in each one of them you have a legendary dragon, which is level 30. Then, in 38.1 hours you will have 750,000 x 24 = 28,500,000 of gold. Two days is equal to 48 hours so in the remaining 9.9 hours you will get 7,405,512 of gold. You can get up to 35,905,512 gold every two days, less than the 60 M required.

But if you have legendary crystals your dragons will collect 20% more gold by minute, which is 20% faster. Now, each 30level legendary dragon collects 984 gold by minute, so your habitats are full in 762.2 minutes or 31.76 hours, and you can collect 28,500,000 of food again but in 31.76 hours. For the remaining 16.24 hours you can collect 15,575,584 of gold. In total, every two days you will collect 43,075,584. It is impossible to farm shining stars  in the 12 huge farms every two days. You collected about 75% of the food you needed.

I was bored of doing more calculations but roughly you need to increase your time for getting to 51 level by 39% (60,000,000 / 43,075,584). Finally it will take you 162.3 (116.5 x 139%) days  to get to level 51, or 5.4 30-days months.

Limitations of the analysis

-It is assumed that you have alredy 38 legendary habitats with 38  level30  legendary dragons

-It will take you some time to breed 38 legendary dragons and much more to feed them until they get to level 30!. However, in the process you will get many experience points.

-You would have to stick to a daily schedule just to collect gold and farm shining stars. You will find this quite boring as the minimum time I calculated to get to level 51 is 162.3 days (or 5.4 30-day months)

-I have not reached level 30 yet since I started playing the game just recently, so my calculations are backed up by contributions of other members of dragoncity.wikia.com, from where I got all the information.

-I don't know if you can fill all the islands with 38 legendary habitats, but they don't use to much space as other habitats like big habitats or pure habitats. I don't know either if you can arrange all the habitats so that the maximum level of legendary crystals (which must be 4) can benefit all 38 legendary habitats (would be nearly one legendary crystal by each 10 legendary habitats). You will also need to remove a lot of buildings, not just habitats.

Good luck for you who are persistent and I hope someone finds a faster way to get to level 51.