We are introducing new bonuses - DIAMONDS! 

With their help you can get the following stuff: heroes, resources, various subscriptions and more. 
Get diamonds entering the game (once a day), as well as purchasing gold. 

Diamonds accrual system: 

1. When logging into the game, each player gets 1 diamond (once a day). 
2. When buying gold, player receives: 
a) +10 diamond for every 1000 gold 
b) +20 diamond for every 2000 gold 

For example: 
Buying 900 gold player gets 0 diamonds. 
1000 gold + 10 diamonds (10 / 1000) 
1900 gold + 10 diamonds (10 / 1000) 
2000 gold + 40 diamonds(20 / 1000 + 20 / 2000) 
3000 gold + 50 diamonds (30 / 1000 + 20 / 2000) 
4000 gold + 80 diamonds (40 / 1000 + 40 / 2000) 

Diamonds may be spend in the following way: 

a) +10 000 each resource {in the current city}: 6 diamonds 
b) +50 000 each resource {in the current city}: 22 diamond 
c) get a free hero {till death}: 150 diamonds 
d) extend / purchase a subscription: 
d.a) Newbie: 22 diamonds / week 
d.b) Silver: 25 diamonds / week 
d.c) Gold: 50 diamonds / week 
e) Buy / extend City fog of war for 7 days {in the current city}: 14 diamonds 

Prices may change.