Age of Origins Main Hall – City Level Requirements Guide

age of origins core mining station requirements

Age of Origins Uranium

Age of Origins Beginner’s Guide – Tips and Tricks

Age of Origins Main Hall - City Level Requirements

Unlock city growth quickly and efficiently with our comprehensive Main Hall upgrade guide. Discover the required resources and prerequisite buildings for each city level and plan your strategy accordingly!

Why the Main Hall Matters

Your Main Hall serves as the backbone of your city in Age of Origins. Upgrading it unlocks new buildings, raises the maximum level for existing structures, and boosts everything from resource production to defense. This guide helps you stay on top of what’s needed for the next level—so you're always building smart.

Resource Highlights & Unlock Milestones

Steel starts at level 16—prepare to stockpile it early.
Minerals are required starting level 21—be ready to scale mining accordingly
Uranium kicks in at level 31, unlocking deep mining for a new resource tier. Check out this Uranium guide.

Below is a table of the Main Hall and the requirements of each city level. This is very important to optimize your building efficiency. Now when you are upgrading your Main Hall you can look up which buildings are required for the next city level. You should be trying to keep ahead of the pre-requisites.

We've updated to include C41!

age of origins main hall requirements c41

Age of Origins Main Hall - City Level Requirements

City Lvl	Food	Oil	Steel	Mineral	Uranium	Requirement
1	3,670	3,670	-	-	-
2	5,850	5,850	-	-	-
3	8,620	8,620	-	-	-	City Wall 2
4	14,400	14,400	-	-	-	City Wall 3
5	22,950	22,950	-	-	-	City Wall 4, Farm 4
6	42,750	42,750	-	-	-	City Wall 5, Oil Field 5
7	86,250	86,250	-	-	-	City Wall 6, Barracks 6
8	141,000	141,000	-	-	-	City Wall 7, Depot 7
9	214,500	214,500	-	-	-	City Wall 8, Training Grounds 8
10	330,000	330,000	-	-	-	City Wall 9, Academy 9
11	378,780	378,780	-	-	-	City Wall 10, Garage 10
12	757,570	757,570	-	-	-	City Wall 11, Hospital 11
13	1,060,590	1,060,590	-	-	-	City Wall 12, Recon Center 12
14	2,121,200	2,121,200	-	-	-	City Wall 13, Embassy 13
15	4,545,440	4,545,440	-	-	-	City Wall 14, Garage 14
16	5,181,790	5,181,790	518,180	-	-	City Wall 15, Steel Mill 15
17	6,628,770	6,628,770	1,136,360	-	-	City Wall 16, Hospital 16
18	8,749,980	8,749,980	1,499,990	-	-	City Wall 17, Training Grounds 17
19	10,749,980	10,749,980	2,215,140	-	-	City Wall 18, Depot 18
20	12,499,980	12,499,980	2,575,750	-	-	City Wall 19, Academy 19
21	12,606,040	12,606,040	2,618,170	1,018,180	-	City Wall 20, Mineral Mine 20
22	14,545,430	14,545,430	393,930	1,454,540	-	City Wall 21, Medic Station 21
23	18,469,660	18,469,660	4,496,960	2,087,870	-	City Wall 22, Factory 22
24	23,333,290	23,333,290	5,939,380	2,969,690	-	City Wall 23, Embassy 23
25	30,999,950	30,999,950	7,890,890	3,945,440	-	City Wall 24, Depot 24
26	39,136,300	39,136,300	10,436,340	5,590,900	-	City Wall 25, Recon Center 25
27	49,393,860	49,393,860	13,830,280	7,903,010	-	City Wall 26, Hospital 26
28	64,242,320	64,242,320	17,987,850	10,278,770	-	City Wall 27, Academy 27
29	83,484,720	83,484,720	23,375,720	13,357,550	-	City Wall 28, Garage 28
30	108,484,680	108,484,680	30,375,710	17,357,550	-	City Wall 29, Workshop 29
31	136,690,750	136,690,750	38,273,410	21,870,520	49,270	City Wall 30, Recon Center 30
32	169,496,550	169,496,550	47,459,030	27,119,440	81,350	City Wall 31, Garage 31
33	206,785,700	206,785,700	57,899,990	33,085,700	141,480	City Wall 32, Depot 32
34	248,142,840	248,142,840	69,479,980	39,702,840	214,240	City Wall 33, Embassy 33
35	292,808,470	292,808,470	87,986,350	46,849,330	317,840	City Wall 34, Hospital 34
36	314,374,510	314,374,510	88,024,840	50,299,890	350,780	City Wall 35, Garage 35
37	333,648,650	333,648,650	93,421,590	53,383,750	337,680	City Wall 36, Depot 36
38	353,579,490	353,579,490	99,002,220	56,572,680	401,260	City Wall 37, Embassy 37
39	353,614,840	353,614,840	99,012,120	56,578,330	438,980	City Wall 38, Hospital 38
40	353,650,200	353,650,200	99,022,020	56,583,980	483,830	City Wall 39, Garage Lv.39
41	353,685,560	353,685,560	99,031,920	56,589,630	529,660	City Wall 40, Embassy Lv.40

Looking for more guides? The Age of Origins Beginner's Guide is great.

Age of Origins Main Hall – City Level Requirements Guide

Age of Origins Main Hall - City Level Requirements

Why the Main Hall Matters

Resource Highlights & Unlock Milestones

Age of Origins Main Hall - City Level Requirements

Age of Origins Biochemical Lab

Age of Origins Manage Troops (Troop Promotion)

Age of Origins Infinite Tower Defense (TD) Coin