Upgrades
Level
|
Usage Fee
|
Appeal
|
Cost
|
Max
|
Build Time
|
Sell
|
Level 1
|
47
|
46
|
3,520,000
|
660
|
10h 40m
|
|
Level 2
|
+2
|
+1
|
|
860
|
11h 10m
|
|
Level 3
|
+2
|
+1
|
10,560,000
|
1,120
|
12h 10m
|
|
Level 4
|
+3
|
+1
|
14,080,000
|
1,460
|
14h 10m
|
|
Level 5
|
+3
|
+1
|
|
|
|
|
Level 6
|
+4
|
+1
|
|
|
|
|
Level 7
|
+4
|
+1
|
|
|
|
|
Level 8
|
+5
|
+1
|
|
|
|
|
Level 9
|
+5
|
+1
|
|
|
|
|
Level 10
|
+6
|
+1
|
|
|
|
|