upgrade resources can occasionally be found in :
  • merchantmerchant ships
  • treasure_chestdaily chests
  • treasure_crabtreasure crab
  • sealseal dives
 
Windmill Storage
  pulley gear beam blade
40->50 1 0 0 0
50->60 2 1 0 0
60->70 3 2 0 0
70->80 4 3 1 0
80->90 5 3 2 0
90->100 6 3 2 0
100->110 7 3 2 0
110->120 8 4 3 1
120->130 9 4 3 1
130->140 10 5 3 1
140->150 11 5 3 1
150->160 12 6 3 1
160->170 13 6 3 1
170->180 14 7 3 1
180->190 15 7 3 1
190->200 16 8 4 2
200->210 17 8 4 2
210->220 18 9 4 2
220->230 19 9 4 2
Treehouse Storage
  crates stilt stairs paddle
30->40 1 0 0 0
40->50 2 1 0 0
50->60 3 2 0 0
60->70 4 3 1 0
70->80 5 3 2 0
80->90 6 3 2 0
90->100 7 3 2 0
100->110 8 4 3 1
110->120 9 4 3 1
120->130 10 5 3 1
130->140 11 5 3 1
140->150 12 6 3 1
150->160 13 6 3 1
160->170 14 7 3 1
170->180 15 7 3 1
180->190 16 8 4 2
190->200 17 8 4 2
200->210 18 9 4 2