Upgrades
Level
|
Usage Fee
|
Appeal
|
Cost
|
Max
|
Build Time
|
Sell
|
Level 1
|
50
|
40
|
2,560,000
|
630
|
10h 30m
|
|
Level 2
|
+2
|
+1
|
|
820
|
11h
|
|
Level 3
|
+2
|
+1
|
7,680,000
|
1,070
|
12h
|
|
Level 4
|
+3
|
+1
|
10,240,000
|
1,395
|
14h
|
|
Level 5
|
+3
|
+1
|
|
|
|
|
Level 6
|
+4
|
+1
|
|
|
|
|
Level 7
|
+4
|
+1
|
|
|
|
|
Level 8
|
+5
|
+1
|
|
|
|
|
Level 9
|
+5
|
+1
|
|
|
|
|
Level 10
|
+6
|
+1
|
|
|
|
|