Cost Bonuses
Level: 1 20 40 60 80

FOE - Observatory

Observatory Table and chart of construction cost and rewards of Great Building Observatory from Forge of Empires game including The Arc bonus.
In addition, the calculated FP to block the first place and the total construction costs of the Great Building by the owner.

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 costs and FP rewards

To change the range of levels or the value of the bonus from The Arc, use the form below.
Block indicates the number of Forge Points that an owner should invest at a given level of Great Building so that the investor paying the FP in the amount of the return plus the bonus from The Arc has guaranteed the place. On some levels, with the high The Arkc bonus, this value is negative, which means that the investor can guarantee the place for less than reward for this place.
Level - max The Arc %
Level Cost FP Rewards / Block Owner cost
1 2 3 4 5 Per Level % Sum
1 50 10
30
10
20
0 0 0 30 60% 30
2 70 19
32
10
31
0 0 0 41 59% 71
3 130 29
72
19
63
10
62
0 0 72 55% 143
4 200 38
124
19
124
10
123
0 0 133 66% 276
5 270 57
156
29
155
10
164
0 0 174 64% 450
6 330 67
196
38
187
10
205
0 0 215 65% 665
7 420 86
248
48
238
19
248
10
247
0 257 61% 922
8 490 95
300
48
299
19
309
10
308
0 318 65% 1 240
9 570 114
342
57
342
19
361
10
360
0 370 65% 1 610
10 650 124
402
67
392
19
421
10
420
0 430 66% 2 040
11 667 143
381
76
372
29
390
10
399
0 409 61% 2 449
12 683 162
359
86
349
29
377
10
386
0 396 58% 2 845
13 700 181
338
95
329
29
366
10
375
0 385 55% 3 230
14 718 190
338
95
338
29
375
10
384
0 394 55% 3 624
15 736 209
318
105
317
38
346
10
364
0 374 51% 3 998
16 754 228
298
114
298
38
336
10
354
0 364 48% 4 362
17 773 247
279
124
278
38
326
10
344
0 354 46% 4 716
18 792 266
260
133
260
48
297
10
325
0 335 42% 5 051
19 812 285
242
143
241
48
288
10
316
0 326 40% 5 377
20 833 295
243
152
234
48
290
10
318
0 328 39% 5 705
Level Cost FP Rewards / Block Owner cost
1 2 3 4 5 Per Level % Sum
21 853 314
225
162
215
57
263
19
282
0 301 35% 6 006
22 875 333
209
171
200
57
257
19
276
0 295 34% 6 301
23 897 352
193
181
183
57
250
19
269
0 288 32% 6 589
24 919 371
177
190
168
67
224
19
253
0 272 30% 6 861
25 942 390
162
200
152
67
218
19
247
0 266 28% 7 127
26 965 409
147
209
138
67
213
19
242
0 261 27% 7 388
27 990 428
134
219
124
76
191
19
229
0 248 25% 7 636
28 1 014 447
120
228
111
76
187
19
225
0 244 24% 7 880
29 1 040 466
108
238
98
76
184
19
222
0 241 23% 8 121
30 1 066 485
96
247
87
86
162
19
210
0 229 21% 8 350
31 1 092 504
84
257
74
86
159
19
207
0 226 21% 8 576
32 1 120 523
74
266
65
86
159
19
207
0 226 20% 8 802
33 1 147 542
63
276
53
95
139
29
176
10
185
195 17% 8 997
34 1 176 570
36
285
36
95
131
29
168
10
177
187 16% 9 184
35 1 206 589
28
295
27
95
132
29
169
10
178
188 16% 9 372
36 1 236 608
20
304
20
105
114
29
161
10
170
180 15% 9 552
37 1 267 627
13
314
12
105
116
29
163
10
172
182 14% 9 734
38 1 298 646
6
323
6
105
119
29
166
10
175
185 14% 9 919
39 1 331 665
1
333
0
114
105
29
161
10
170
180 14% 10 099
40 1 364 694
-24
352
-34
114
90
29
146
10
155
165 12% 10 264
Level Cost FP Rewards / Block Owner cost
1 2 3 4 5 Per Level % Sum
41 1 398 713
-28
361
-37
124
76
29
142
10
151
161 12% 10 425
42 1 433 732
-31
371
-41
124
82
29
148
10
157
167 12% 10 592
43 1 469 751
-33
380
-42
124
90
29
156
10
165
175 12% 10 767
44 1 505 770
-35
390
-45
133
79
38
136
10
154
164 11% 10 931
45 1 543 798
-53
399
-53
133
80
38
137
10
155
165 11% 11 096
46 1 582 817
-52
409
-53
133
90
38
147
10
165
175 11% 11 271
47 1 621 836
-51
418
-51
143
81
38
148
10
166
176 11% 11 447
48 1 662 855
-48
428
-49
143
93
38
160
10
178
188 11% 11 635
49 1 703 884
-65
447
-75
152
68
38
144
10
162
172 10% 11 807
50 1 746 903
-60
456
-69
152
83
38
159
10
177
187 11% 11 994
51 1 789 922
-55
466
-65
152
97
38
173
10
191
201 11% 12 195
52 1 834 950
-66
475
-66
162
85
38
171
10
189
199 11% 12 394
53 1 880 969
-58
485
-59
162
102
38
188
10
206
216 11% 12 610
54 1 927 988
-49
494
-49
162
121
38
207
10
225
235 12% 12 845
55 1 975 1 017
-59
513
-68
171
103
48
178
10
206
216 11% 13 061
56 2 025 1 036
-47
523
-57
171
124
48
199
10
227
237 12% 13 298
57 2 075 1 055
-35
532
-44
181
126
48
211
10
239
249 12% 13 547
58 2 127 1 083
-39
542
-40
181
140
48
225
10
253
263 12% 13 810
59 2 180 1 102
-24
551
-24
181
165
48
250
10
278
288 13% 14 098
60 2 235 1 121
-7
561
-8
190
173
48
267
10
295
305 14% 14 403
Level Cost FP Rewards / Block Owner cost
1 2 3 4 5 Per Level % Sum
61 2 290 1 150
-10
580
-20
190
180
48
274
10
302
312 14% 14 715
62 2 348 1 169
10
589
1
200
190
48
294
10
322
332 14% 15 047
63 2 406 1 197
12
599
11
200
210
48
314
10
342
352 15% 15 399
64 2 467 1 216
35
608
35
200
243
48
347
10
375
385 16% 15 784
65 2 528 1 235
58
618
57
209
257
57
352
10
389
399 16% 16 183
66 2 591 1 264
63
637
53
209
272
57
367
10
404
414 16% 16 597
67 2 656 1 283
90
646
81
219
289
57
394
10
431
441 17% 17 038
68 2 723 1 311
101
656
100
219
318
57
423
10
460
470 17% 17 508
69 2 791 1 330
131
665
131
219
358
57
463
10
500
510 18% 18 018
70 2 860 1 359
142
684
133
228
361
57
475
10
512
522 18% 18 540
71 2 932 1 378
176
694
166
228
404
57
518
10
555
565 19% 19 105
72 3 005 1 397
211
703
202
238
429
57
553
10
590
600 20% 19 705
73 3 080 1 425
230
713
229
238
466
57
590
10
627
637 21% 20 342
74 3 157 1 444
269
722
269
238
515
57
639
10
676
686 22% 21 028
75 3 236 1 473
290
741
281
247
528
67
641
10
688
698 22% 21 726
76 3 317 1 492
333
751
323
247
580
67
693
10
740
750 23% 22 476
77 3 400 1 520
360
760
360
257
606
67
729
10
776
786 23% 23 262
78 3 485 1 539
407
770
406
257
662
67
785
10
832
842 24% 24 104
79 3 572 1 568
436
789
426
266
683
67
815
10
862
872 24% 24 976
80 3 661 1 587
487
798
478
266
744
67
876
10
923
933 25% 25 909

FOE - Observatory - cost

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.