⭐Leveling

The benefit of upgrading is to increase the attributes of the hero. The game will make a roll for each attribute to see if they increase. The roll will be based on the hero's primary attribute growth percentage, which is primarily based on the hero's class. Each successful roll adds +1 to the attribute value. HP will definitely increase. A separate roll will be made to see which type of increase it is (hpSm(+10), hpRg(+20), hpLg(+30)).

See these stat growth breakdown charts for insight into the base growth rates of each class.

Hero upgrade growth rate percentage	hpSm(+10)%	hpRg(+20)%	hpLg(+30)%	attack(+1)‱	skill(+1)‱	speed(+1)‱	defense(+1)‱	luck(+1)‱		defense(+1)
Peasants	30	50	20	4000	2000	5000	3000	8000
Fishermen	25	50	25	3000	2000	7000	3000	7000
Carpenter	20	50	30	5000	6000	2000	6000	3000
Miner	10	45	35	7000	3000	2000	8000	2000
Merchant	50	40	10	2000	8000	2000	3000	7000
Hunter	20	50	30	8000	4000	7000	2000	1000
Enchanter	60	35	5	3000	8000	3000	3000	5000
Engineer	40	50	10	2000	8000	3000	6000	3000
Biologist	30	50	20	2000	7000	2000	7000	4000
Geologist	25	50	25	5000	6000	2000	6000	3000
Investor	70	25	5	2000	8000	1000	3000	8000
Alchemist	50	40	10	3000	7000	2000	5000	5000
Scientist	60	35	5	2000	8000	2000	5000	5000
Monopoly	70	25	5	3000	6000	3000	5000	5000
Island Guardian	10	40	50	8000	4000	1000	7000	2000

Experience formula required for hero upgrade:

200 + 100 * 8 (2*((_level-1)/7) -1) + 100 * 2**((_level-1)/7) * (_level - (1+((_level-1)/7)*7))

_level=(2~100)