Quick answer: every building has 30 levels except the Garrison Tent (1 level). The Castle unlocks the others, from Farms at Castle 1 to the Ethereon Tower at Castle 20. The tables below give each building’s main effect at levels 1, 5, 10, 20 and 30. The Upgrade window in game always shows the exact Current and Next Level values for your building.
- Castle cap. From level 3 on, a building can only be upgraded to a level no higher than your Castle. Most buildings also need one or two other buildings at a slightly lower level. The Upgrade window lists them under Requirements.
- Level 1 is free. Building a new building costs nothing; every upgrade after that costs resources (and gold for the Castle, Battle Hall, Bunker and Ethereon Tower from level 21).
- Plots. Farms, Stone Mines, Ore Mines and Lumber Mills use the 12 resource plots. Barracks, Infirmaries and Manors share the 16 military plots. Workshop, Embassy, Battle Hall, Prison, Shelter and Garrison Tent each have their own plot.
- Cannot be demolished: Workshop, Embassy, Battle Hall, Trading Post, Agora, Garrison Tent, Transmutation Lab and Bank.
- Effects that add a percentage (training speed, research speed, forge speed, Manor march size) stack with your other bonuses. See Boosts and how they stack.
| Building |
Unlocks at |
Max |
What it does |
| Castle |
start |
1 |
Caps other buildings, sets march size, heroes per army, march slots |
| Wall |
start |
1 |
Castle defense: Wall HP and defense |
| Farm, Stone Mine, Ore Mine, Lumber Mill |
Castle 1 |
12 each |
Produce and store food, stone, ore, wood |
| Barracks |
Castle 2 |
100 |
Train troops |
| Vault |
Castle 3 |
1 |
Vault capacity |
| Workshop |
Castle 4 |
1 |
Forge castle equipment |
| Infirmary |
Castle 5 |
100 |
Hold and heal wounded troops |
| Manor |
Castle 5 |
5 |
Gold and a bigger march (Manor) |
| Academy |
Castle 6 |
1 |
Research |
| Watch Tower |
Castle 7 |
1 |
Scout level |
| Shelter |
Castle 8 |
1 |
Shelter troops |
| Defi Market (Commerce) |
Castle 9 |
1 |
Trade slots |
| Trading Post |
Castle 9 |
1 |
Send resources to allies (supply) |
| Prison |
Castle 10 |
1 |
Hold captured leaders |
| Soul Sanctum |
Castle 10, placed for you |
1 |
Souls and Soul Essence |
| Embassy |
Castle 10 |
1 |
Hold allied reinforcements |
| Garrison Tent |
Castle 10 + Embassy 1 |
1 |
Lets one ally camp an army outside your Wall (1 level only) |
| Battle Hall |
Castle 10 |
1 |
Start rallies |
| Bunker |
Castle 17 |
1 |
Hide troops |
| Ethereon Tower |
Castle 20 |
1 |
Make Ethereon; holds the War Chest |
| Level |
Castle: troops per march |
Castle: heroes per army |
Castle: Max Help received |
| 1 |
1,600 |
1 |
6 |
| 5 |
16,000 |
2 |
10 |
| 10 |
36,000 |
3 |
15 |
| 20 |
76,000 |
5 |
25 |
| 30 |
116,000 |
5 |
35 |
| Level |
Wall: HP |
Wall: defense |
| 1 |
1,000 |
100 |
| 5 |
2,441 |
207 |
| 10 |
7,451 |
516 |
| 20 |
69,389 |
3,195 |
| 30 |
646,235 |
19,781 |
The Castle also adds a march slot at levels 8, 15, 22 and 29 (1 slot at the start, 5 at level 29). Heroes per army goes up by one every 4 Castle levels (2 at level 5, 3 at 9, 4 at 13, 5 at 17). The Wall repairs itself fully in about 24 hours. Details: How many troops can I send?.
Farm, Stone Mine, Ore Mine and Lumber Mill make the same amount per hour. The Manor makes the same amount as gold.
| Level |
Production per hour |
Storage added |
Manor: Max Army Size |
| 1 |
100 |
1,000 |
+0.67% |
| 5 |
222 |
2,215 |
+3.33% |
| 10 |
599 |
5,987 |
+6.67% |
| 20 |
4,374 |
43,736 |
+13.33% |
| 30 |
31,947 |
319,474 |
+20% |
The Manor also adds gold storage, the same amounts as a Farm adds food storage. See Manor.
| Level |
Barracks: training capacity |
Barracks: training speed |
Infirmary: capacity |
| 1 |
40 |
+1.5% |
1,000 |
| 5 |
320 |
+7.5% |
4,500 |
| 10 |
1,120 |
+15% |
12,000 |
| 20 |
2,720 |
+30% |
27,000 |
| 30 |
4,320 |
+45% |
42,000 |
| Level |
Battle Hall: rally size |
Embassy: allied troops |
Embassy: help slots |
| 1 |
20,000 |
5,000 |
5 |
| 5 |
160,000 |
50,000 |
7 |
| 10 |
260,000 |
112,500 |
9 |
| 20 |
800,000 |
350,000 |
14 |
| 30 |
2,500,000 |
1,500,000 |
19 |
| Level |
Watch Tower: scout level |
Bunker: troops hidden |
Shelter: troops sheltered |
| 1 |
1 |
500 |
500 |
| 5 |
2 |
1,037 |
1,200 |
| 10 |
4 |
2,580 |
3,600 |
| 20 |
7 |
15,974 |
33,000 |
| 30 |
10 |
98,907 |
300,000 |
| Level |
Prison: leaders held |
Prison: execution wait cut |
| 1 |
1 |
15 min |
| 5 |
1 |
4 h |
| 10 |
2 |
14 h |
| 20 |
3 |
34 h |
| 30 |
5 |
54 h |
Barracks and Infirmary values are per building: two level 10 Infirmaries hold 24,000 wounded troops. Rally size is the Battle Hall’s Max Coalition Army Size. See Troops, training and healing and Prison and shelter.
| Level |
Vault: capacity |
Workshop: forging speed |
Academy: research speed |
| 1 |
5,000 |
+4% |
+2% |
| 5 |
14,281 |
+8% |
+10% |
| 10 |
53,022 |
+13% |
+20% |
| 20 |
730,960 |
+23% |
+40% |
| 30 |
10,076,906 |
+33% |
+60% |
| Level |
Defi Market: trade slots |
Trading Post: supply capacity |
Trading Post: supply tax |
| 1 |
1 |
10,000 |
30% |
| 5 |
2 |
75,000 |
26% |
| 10 |
4 |
275,000 |
22% |
| 20 |
7 |
1,650,000 |
14% |
| 30 |
10 |
3,600,000 |
5% |
| Level |
Soul Sanctum: soul capacity |
Soul Sanctum: Soul Essence per hour |
Ethereon Tower: Ethereon per day |
| 1 |
1,000 |
10 |
1 |
| 5 |
5,000 |
50 |
4 |
| 10 |
10,000 |
100 |
21 |
| 20 |
20,000 |
200 |
598 |
| 30 |
30,000 |
300 |
17,287 |
The Soul Sanctum is placed for you when your Castle reaches level 10; you do not build it.
The tax in the table is the base rate for your Trading Post level. The Trading Post window shows the tax you actually pay.
The Bank is open to every player. You do not build it: it is placed in your city for you. See Bank.
The Transmutation Lab, the Agora market and Wall traps are switched off in the production game. You cannot build or use them yet.
- “Requires Castle level N.” Upgrade your Castle first.
- “Limit reached! No more buildings of this type allowed.” You own the maximum for that building (for example 5 Manors or 12 Farms).
- Requirements show Not Met. Upgrade the buildings listed in the Upgrade window. See Castle and buildings.