Leveling your Castle: requirements, order and costs

The buildings each level requires, what to upgrade first, how much it costs to reach Castle 30, and the habits that stop you wasting build time.

Translation awaiting review.

Castle and researchBeginnerUpdated 1 November 2026
Contents
  1. At a glance
  2. What to build, in order
  3. Buildings required at each level
  4. What the Castle costs
  5. Other key buildings
  6. Managing your builds

At a glance

Level 30

is the highest Castle level for now.

354 days

of base build time from level 1 to 30, before bonuses and speedups.

Castle first

Everything depends on it: it sets the maximum level of your other buildings.

What to build, in order

  1. The Castle comes first. Open the Castle upgrade panel: it lists the buildings you need before the next level. Upgrade those, not the others.
  2. Production and combat buildings follow, depending on what holds you back: Barracks and Drill Ground for the army, Scholar Tower for research.
  3. The rest can wait. Keeping every building at the same level is the slowest way to grow.

Buildings required at each level

To upgrade the Castle, two buildings must first reach the level just below. From Castle 10, the rule alternates:

  • Even Castle levels (10, 12… 30): Barracks and any faction building (Tribe Forge, Legion Bastion or Ranger Retreat), at the previous level.
  • Odd Castle levels (11, 13… 29): Alliance Keep and Scholar Tower I, at the previous level.
CastleRequired buildings
10Barracks 9 + Faction 9
11Alliance Keep 10 + Scholar Tower I 10
12Barracks 11 + Faction 11
13Alliance Keep 12 + Scholar Tower I 12
14Barracks 13 + Faction 13
15Alliance Keep 14 + Scholar Tower I 14
16Barracks 15 + Faction 15
17Alliance Keep 16 + Scholar Tower I 16
18Barracks 17 + Faction 17
19Alliance Keep 18 + Scholar Tower I 18
20Barracks 19 + Faction 19
21Alliance Keep 20 + Scholar Tower I 20
22Barracks 21 + Faction 21
23Alliance Keep 22 + Scholar Tower I 22
24Barracks 23 + Faction 23
25Alliance Keep 24 + Scholar Tower I 24
26Barracks 25 + Faction 25
27Alliance Keep 26 + Scholar Tower I 26
28Barracks 27 + Faction 27
29Alliance Keep 28 + Scholar Tower I 28
30Barracks 29 + Faction 29

Before Castle 10

The first levels need only one building, sometimes two:

CastleRequired buildings
2Farm 1 and Townhouse 1
3Drill Ground 1
4Builders' Hut 3
5Ward Tent 4
6Barracks 5
7Faction building 6
8Barracks 7
9Scholar Tower I 7 and Alliance Keep 7

Source: Ares alliance chart (levels 10 to 30) and toplordswiki.com (levels 1 to 9).

What the Castle costs

Upgrades get very expensive after level 20. A few steps, at base cost:

UpgradeWoodFoodCoinsTime
15 → 1612M12M2.4M1d 22h
20 → 2153M53M10.6M7d 1h
25 → 26200M200M40M26d 4h
29 → 30570M570M114M93d 9h

In total, from level 1 to 30: about 2.43 billion wood, the same in food, and 486 million coins.

Other key buildings

1

Barracks

Max 35

Costs no coins, but needs a Castle at the same level. Levels 31 to 35 need Castle 31, which isn't available yet. From level 1 to 30: about 403M wood, 1.21B food and 265 days of base build time.

2

Drill Ground

Max 35

Sets how many soldiers you train at once: 2,000 at level 1, 3,000 at level 5, 8,000 at level 30. Same costs as the Barracks, with wood and food swapped.

3

Scholar Tower I

+1%/lvl

Unlocks at Castle 4. Each level adds 1% research speed, so 30% at level 30.

Managing your builds

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