Expansion

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Expansion allows the player to enlarge the building area of city. One expansion unlocks an area of 4x4 tiles that is placed adjacent to the current building area grid. There are three ways to expand the building area, by paying with coins, medals or diamonds. Expanding is crucial due to the influx of great buildings, and the requirement for population. You start the game with 16 4x4 tiles.

Expansion by coins needs to be researched in the technology or rewarded upon conquest of a province before players can expand. Expansion by medals and diamonds do not have this limitation. However, expansion by diamonds is limited 2 expansion per age, that means players can only unlock a maximum of 18 expansions. Expansion by medals has a maximum of 15 expansions and expansion by coins has a maximum of 51 expansions (32 by research and 19 by conquest).

This is where you get expansions for your city.

16 Expansions you have at start.

32 Expansions available thru research. (coins/diamonds)

18 Expansions available when you reach a new age. (diamonds)

15 Expansions available from medals.

19 Expansions available from conquest. (coins/diamonds)

Expansion Fee

*Note that, in the column of coins, the player can pay either coins or diamonds after having researched the expansion technology. The expansion fees of different columns are not successive.

No. of expansion	Coins(Diamonds)*	Medals	Diamonds
1	100 / 50	10	200
2	300 / 50	50	200
3	400 / 50	200	400
4	600 / 50	500	400
5	800 / 100	1000	600
6	1000 / 100	2000	600
7	1300 / 100	3000	600
8	1800 / 100	4000	600
9	2300 / 200	5000	600
10	2800 / 200	6000	600
11	3400 / 200	9000	600
12	3900 / 200	12000	600
13	5400 / 300	15000	600
14	7100 / 400	18000	600
15	8700 / 400	21000	600
16	10000 / 400	-	600
17	12000 / 400	-	600
18	14000 / 400	-	600
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 / 600	-	-
49	740000 / 600	-	-
50	800000 / 600	-	-
51	860000? / 600	-	-