Cost Bonuses
Level: 1 20 40 60 80

FOE - Observatory

Observatory Table and chart of construction cost and the bonuses of Great Building Observatory.
In addition, the calculated bonus increase at each level and the FP cost per unit of the bonus.

Observatory - Bonuses

Guild Goods - Produces some of each current good for the guild's treasury. Can only be collected when in a guild.
Support Pool Bonus - Guild gains an amount to their support pool.

By clicking on the names of elements above the graph you can hide and show individual series of the graph. Hover over the graph to see the exact values for each level of the Great Building Observatory.

Observatory - table of bonuses

To change the range of levels or the value of the bonus from The Arc, use the form below.
By clicking on the names of the bonuses, you will go to the bonus page, where you will see a comparison of all Great Buildings giving this bonus.
Level - max The Arc %
Level Cost FP Owner cost Bonuses
Guild Goods Support Pool Bonus
Value Increase Cost FP of 1 Value Increase Cost FP of 1
1 50 30 3 3 10,00 10 10 3,00
2 70 41 4 1 41,00 20 10 4,10
3 130 72 4 0 30 10 7,20
4 200 133 5 1 205,00 40 10 13,30
5 270 174 6 1 174,00 50 10 17,40
6 330 215 6 0 60 10 21,50
7 420 257 7 1 472,00 70 10 25,70
8 490 318 7 0 80 10 31,80
9 570 370 8 1 688,00 90 10 37,00
10 650 430 8 0 100 10 43,00
11 667 409 10 2 419,50 103 3 136,33
12 683 396 12 2 198,00 106 3 132,00
13 700 385 14 2 192,50 109 3 128,33
14 718 394 16 2 197,00 112 3 131,33
15 736 374 18 2 187,00 115 3 124,67
16 754 364 20 2 182,00 118 3 121,33
17 773 354 22 2 177,00 121 3 118,00
18 792 335 24 2 167,50 124 3 111,67
19 812 326 26 2 163,00 127 3 108,67
20 833 328 28 2 164,00 130 3 109,33
Level Cost FP Owner cost Bonuses
Guild Goods Support Pool Bonus
Value Increase Cost FP of 1 Value Increase Cost FP of 1
21 853 301 30 2 150,50 133 3 100,33
22 875 295 32 2 147,50 136 3 98,33
23 897 288 34 2 144,00 139 3 96,00
24 919 272 36 2 136,00 142 3 90,67
25 942 266 38 2 133,00 145 3 88,67
26 965 261 40 2 130,50 148 3 87,00
27 990 248 42 2 124,00 151 3 82,67
28 1 014 244 44 2 122,00 154 3 81,33
29 1 040 241 46 2 120,50 157 3 80,33
30 1 066 229 48 2 114,50 160 3 76,33
31 1 092 226 50 2 113,00 163 3 75,33
32 1 120 226 52 2 113,00 166 3 75,33
33 1 147 195 54 2 97,50 169 3 65,00
34 1 176 187 56 2 93,50 172 3 62,33
35 1 206 188 58 2 94,00 175 3 62,67
36 1 236 180 60 2 90,00 178 3 60,00
37 1 267 182 62 2 91,00 181 3 60,67
38 1 298 185 64 2 92,50 184 3 61,67
39 1 331 180 66 2 90,00 187 3 60,00
40 1 364 165 68 2 82,50 190 3 55,00
Level Cost FP Owner cost Bonuses
Guild Goods Support Pool Bonus
Value Increase Cost FP of 1 Value Increase Cost FP of 1
41 1 398 161 70 2 80,50 193 3 53,67
42 1 433 167 72 2 83,50 196 3 55,67
43 1 469 175 74 2 87,50 199 3 58,33
44 1 505 164 76 2 82,00 202 3 54,67
45 1 543 165 78 2 82,50 205 3 55,00
46 1 582 175 80 2 87,50 208 3 58,33
47 1 621 176 82 2 88,00 211 3 58,67
48 1 662 188 84 2 94,00 214 3 62,67
49 1 703 172 86 2 86,00 217 3 57,33
50 1 746 187 88 2 93,50 220 3 62,33
51 1 789 201 90 2 100,50 223 3 67,00
52 1 834 199 92 2 99,50 226 3 66,33
53 1 880 216 94 2 108,00 229 3 72,00
54 1 927 235 96 2 117,50 232 3 78,33
55 1 975 216 98 2 108,00 235 3 72,00
56 2 025 237 100 2 118,50 238 3 79,00
57 2 075 249 102 2 124,50 241 3 83,00
58 2 127 263 104 2 131,50 244 3 87,67
59 2 180 288 106 2 144,00 247 3 96,00
60 2 235 305 108 2 152,50 250 3 101,67
Level Cost FP Owner cost Bonuses
Guild Goods Support Pool Bonus
Value Increase Cost FP of 1 Value Increase Cost FP of 1
61 2 290 312 110 2 156,00 253 3 104,00
62 2 348 332 112 2 166,00 256 3 110,67
63 2 406 352 114 2 176,00 259 3 117,33
64 2 467 385 116 2 192,50 262 3 128,33
65 2 528 399 118 2 199,50 265 3 133,00
66 2 591 414 120 2 207,00 268 3 138,00
67 2 656 441 122 2 220,50 271 3 147,00
68 2 723 470 124 2 235,00 274 3 156,67
69 2 791 510 126 2 255,00 277 3 170,00
70 2 860 522 128 2 261,00 280 3 174,00
71 2 932 565 130 2 282,50 283 3 188,33
72 3 005 600 132 2 300,00 286 3 200,00
73 3 080 637 134 2 318,50 289 3 212,33
74 3 157 686 136 2 343,00 292 3 228,67
75 3 236 698 138 2 349,00 295 3 232,67
76 3 317 750 140 2 375,00 298 3 250,00
77 3 400 786 142 2 393,00 301 3 262,00
78 3 485 842 144 2 421,00 304 3 280,67
79 3 572 872 146 2 436,00 307 3 290,67
80 3 661 933 148 2 466,50 310 3 311,00

FOE - Observatory - bonuses

Put a link to this page on your blog, website, forum or send to guilds and friends in the Forge of Empires game. Okay, you can send it to neighbors too :) If you change the range of displayed levels or bonus from The Arc, it will also be included in the link.