Expansión

Expansion: Strictly speaking, your building site is also a resource in the city – you'll notice quickly that the available space is limited. But you do not need to constantly sell buildings – you can also increase the size of your city. To do this, you must unlock expansions. Investigate technologies for this purpose or conquer provinces on the continent map to give you the expansions. You can find them in your building menu – pay the costs and place them adjacent to your city. Additional expansions are available to you for Diamonds or medals. But expanding or tearing down is not your only option to accommodate more buildings in your city – compare buildings with regards to size and effects. Smaller, more efficient buildings will help to save space!

You can see below a table with all expansion type by age. There is 3 categories of expansion: those you can win in the tech tree and the campaign map, those you can buy with diamonds, and those you can buy with medals. Medals expansions are not related by ages.

	Tech Treeons	Campaign Mapansions	Premiumpansions	Total per age	Medalsions total	Final Total per age
Bronze Age	4	1	2	7	19	43
Iron Age	5	2	2	9	19	36
Early Middle Age	4	2	2	8	19	27
High Middle Age	5	2	2	9	19	36
Late Middle Age	5	3	2	10	19	46
Colonial Age	3	2	2	7	19	53
Industrial Agevolution	2	3	2	7	19	60
Progressive EraEra	2	2	2	6	19	66
Modern Era	2	2	2	6	19	72
Postmodern EraEra	2	2	2	6	19	78
Contemporary Erary Era	2	2	2	6	19	84
Tomorrow Era	2	2	2	6	19	90
The Future	2	2	2	6	19	96
Arctic Future	2	2	1	5	19	101

Cost of the Tech/Campaign expansions:

Expansion	Coin Cost	Premium Cost
1	100	50
2	300	50
3	400	50
4	600	50
5	800	100
6	1000	100
7	1300	100
8	1800	100
9	2300	200
10	2800	200
11	3400	200
12	3900	200
13	5400	300
14	7100	400
15	8700	400
16	10000	400
17	12000	400
18	14000	400
19	16000	500
20	20000	500
21	24000	600
22	27000	600
23	31000	600
24	35000	600
25	39000	600
26	47000	600
27	55000	600
28	63000	600
29	72000	600
30	80000	600
31	90000	600
32	100000	600
33	120000	600
34	140000	600
35	160000	600
36	180000	600
37	200000	600
38	230000	600
39	260000	600
40	300000	600
41	340000	600
42	380000	600
43	420000	600
44	470000	600
45	520000	600
46	570000	600
47	620000	600
48	680000	800
49	740000	800
50	800000	800
51	860000	800
52	930000	800
53	1000000	800
54	1070000	800
55	1140000	800
56	1220000	800
57	1300000	800
58	1380000	800
59	1460000	800
60	1550000	800
61	1640000	800
62	1730000	800
63	1820000	800
64	2000000	800
65	2200000	800
66	2400000	800
67	2600000	800
68	2800000	1000
69	3000000	1000
70	3200000	1000
71	3400000	1000
72	3600000	1000
73	3800000	1000

Cost of the Premium expansion and medal expansion:

Expansion	Premium Cost	Medal Cost
01	200	10
02	200	50
03	400	200
04	400	500
05	600	1000
06	600	2000
07	600	3000
08	600	4000
09	600	5000
10	600	6000
11	600	9000
12	600	12000
13	600	15000
14	600	18000
15	600	21000
16	600	25000
17	800	30000
18	800	40000
19	800	50000
20	800	65000
21	800	85000
22	800	105000
23	1000	130000
24	1000	160000
25	1000	200000
26	1000	240000
27	1000	-
28	1000	-
29	1000	-