The Arc

Built for scientific purposes, the gigantic Arc biosphere project offers a set of different ecosystems in a closed, self-regulated facility. Scientists from all around the world gather to contribute unique insights into our planet.
Properties
Type:	Great Building
Age:	The Future
Street:	1x1
Size:	7x5
Construction Cost:	350 Biogeochemical Data 450 Purified Water 300 Algae 400 Superconductors 375 Nanoparticles
Boosts
Guild Goods	Produces some of each current good for the guild's treasury. Can only be collected when in a guild.
Contribution Boost	Contribution Rewards are increased by a percentage.

Level	Requires
1	70	96,425	9	10%
2	110	98,075	10	12%
3	200	101,075	12	14%
4	290	105,425	13	17%
5	400	111,425	15	19%
6	510	119,075	16	22%
7	620	128,375	18	24%
8	740	139,475	19	26%
9	860	152,375	21	29%
10	970	166,925	22	31%
Level	Requires
11	995	181,850	24	32%
12	1,020	197,150	26	33%
13	1,045	212,825	28	34%
14	1,071	228,890	30	35%
15	1,098	245,360	32	36%
16	1,125	262,235	34	37%
17	1,154	279,545	36	38%
18	1,182	297,275	38	39%
19	1,212	315,455	40	40%
20	1,242	334,085	42	41%
Level	Requires
21	1,273	353,180	44	42%
22	1,305	372,755	46	43%
23	1,338	392,825	48	44%
24	1,371	413,390	50	45%
25	1,405	434,465	52	46%
26	1,440	456,065	54	47%
27	1,476	478,205	56	48%
28	1,513	500,900	58	49%
29	1,551	524,165	60	50%
30	1,590	548,015	62	51%
Level	Requires
31	1,630	572,465	64	52%
32	1,670	597,515	66	53%
33	1,712	623,195	68	54%
34	1,755	649,520	70	55%
35	1,799	676,505	72	56%
36	1,844	704,165	74	57%
37	1,890	732,515	76	58%
38	1,937	761,570	78	59%
39	1,986	791,360	80	60%
40	2,035	821,885	82	61%
Level	Requires
41	2,086	853,175	84	62%
42	2,138	885,245	86	63%
43	2,192	918,125	88	64%
44	2,246	951,815	90	65%
45	2,303	986,360	92	66%
46	2,360	1,021,760	94	67%
47	2,419	1,058,045	96	68%
48	2,480	1,095,245	98	69%
49	2,541	1,133,360	100	70%
50	2,605	1,172,435	102	71%
Level	Requires
51	2,670	1,212,485	104	72%
52	2,737	1,253,540	106	73%
53	2,805	1,295,615	108	74%
54	2,875	1,338,740	110	75%
55	2,947	1,382,945	112	76%
56	3,021	1,428,260	114	77%
57	3,096	1,474,700	116	78%
58	3,174	1,522,310	118	79%
59	3,253	1,571,105	120	79.5%
60	3,334	1,621,115	122	80%
Level	Requires
61	3,418	1,672,385	124	80.5%
62	3,503	1,724,930	126	81%
63	3,591	1,778,795	128	81.5%
64	3,681	1,834,010	130	82%
65	3,773	1,890,605	132	82.5%
66	3,867	1,948,610	134	83%
67	3,964	2,008,070	136	83.5%
68	4,063	2,069,015	138	84%
69	4,164	2,131,475	140	84.5%
70	4,268	2,195,495	142	85%
Level	Requires
71	4,375	2,261,120	144	85.5%
72	4,484	2,328,380	146	86%
73	4,596	2,397,320	148	86.5%
74	4,711	2,467,985	150	87%
75	4,829	2,540,420	152	87.5%
76	4,950	2,614,670	154	88%
77	5,074	2,690,780	156	88.5%
78	5,200	2,768,780	158	89%
79	5,330	2,848,730	160	89.5%
80	5,464	2,930,690	162	90%