The Dragon Keep is the building within the City where your Great Dragon remains and one of the buildings you start off with. Starting from level 8 its upgrades unlock researching levels of Aerial Combat. It can be upgraded to a maximum of level 10.
Requirements
| Levels |
Food |
Lumber |
Metal |
Stone |
Gold |
Build Time (seconds) |
Items
|
| 2 |
800 |
5,000 |
1,400 |
2,400 |
3,000 |
540 |
|
| 3 |
1,600 |
10,000 |
2,800 |
4,800 |
6,000 |
1,080 |
|
| 4 |
3,200 |
20,000 |
5,600 |
9,600 |
12,000 |
2,160 |
|
| 5 |
6,400 |
40,000 |
11,200 |
19,200 |
24,000 |
4,320 |
|
| 6 |
12,800 |
80,000 |
22,400 |
38,400 |
48,000 |
8,640 |
|
| 7 |
25,600 |
160,000 |
44,800 |
76,800 |
96,000 |
17,280 |
|
| 8 |
51,200 |
320,000 |
89,600 |
154,600 |
192,000 |
34,560 |
|
| 9 |
102,400 |
640,000 |
179,200 |
307,200 |
384,000 |
69,120 |
|
| 10 |
204,800 |
1,280,000 |
358,400 |
614,400 |
768,000 |
138,240 |
1× Completion Grant
|
Unlocks
| Levels |
Power |
Research
|
| 1 |
0 |
|
| 2 |
100 |
|
| 3 |
100 |
|
| 4 |
200 |
|
| 5 |
400 |
|
| 6 |
800 |
|
| 7 |
1,600 |
|
| 8 |
3,200 |
Lvl7 Aerial Combat, Lvl1 Aerial Combat, Lvl2 Aerial Combat, Lvl4 Aerial Combat, Lvl8 Aerial Combat, Lvl5 Aerial Combat, Lvl3 Aerial Combat, Lvl6 Aerial Combat
|
| 9 |
6,400 |
Lvl9 Aerial Combat
|
| 10 |
12,800 |
Lvl10 Aerial Combat
|
