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Research · Military

The Unbroken Line

A formation that has never once given ground — raises troop defense.

Entity ID
unbroken_line
Branch
Military
Stat buffed
defense — Defense
Bonus per level
+1.2%
Maximum level
6
Bonus at maximum level
+7.2%
Power per level
100
Power at maximum level
600
Base study time
55 seconds
Study time at maximum level
6m 58s
Prerequisites
Ironclad Mail at level 5, Infantry Discipline at level 5

Cost, time and bonus at every level

The Unbroken Line runs to level 6, adding +1.2% to defense and 100 power each time. Studying it out costs the four soft resources — the same amount of each — and takes 6m 58s for the final level alone. Gems are only ever the optional instant finish; the study itself is bought with what your fields already make.

The Unbroken Line: what each level costs and what it grants.
LevelTotal defensePowerStudy timeEach resourceGems to finish
1+1.2%10055s3,00050
2+2.4%2001m 23s4,20070
3+3.6%3002m 4s5,88098
4+4.8%4003m 6s8,220137
5+6%5004m 38s11,520192
6+7.2%6006m 58s16,140269

Taken from nothing to level 6 that is 19m 4s of raw study and 48,960 of each of food, wood, stone and iron — 195,840 resources in total.

Where it sits in the tree

The Unbroken Line belongs to the Military branch — the offence line — what your swords, horses and bows hit for. It stays locked until Ironclad Mail reaches level 5 and Infantry Discipline reaches level 5. Studying it opens 1 further tech.

Techs gated behind The Unbroken Line.
TechBranchRequires this tech at level
The Long MemoryDominion3

The road here: Weaponry to level 3 → Armor to level 10 → Tempering to level 5 → Ironclad Mail to level 5 → The Unbroken Line. That is 4 studies standing between a fresh Academy and this one.

What The Unbroken Line costs before its own first level: the prerequisite chain, at the levels it demands.
PrerequisiteLevel requiredEach resourceStudy time
Weaponry313,08012m 40s
Armor10209,4005h 2m
Tempering532,8207m 42s
Ironclad Mail532,8207m 42s
Total before you may begin288,1205h 30m

What it eventually opens: 1 study sits downstream of The Unbroken Line, counting every remove.

Everything gated behind The Unbroken Line, directly or at a remove.
StudySteps outBuffsAt its capStudy time at cap
The Long Memory1production_rate+6%5m 4s

Guide: Research & the Academy · Research Priorities. Studied at the Maester's Academy. Index: all 79 studies · the whole database.

Rest of the Military branch: Weaponry · Armor · Drilling · Swordsmanship · Archery · Marksmanship · Spearwork · Blacksmithing · Forged Steel · Shieldwork · Infantry Discipline · Tempering · Ironclad Mail · Horsemanship · Cavalry Tactics · Warhorses · Muster Rolls · Quartermastery · Battle Drums · Pattern Welding · The Standing Army

Every figure above is generated from the shipped game code — the same constants and formulas the running game uses — and regenerated whenever the balance changes. Nothing on this page is hand-typed.

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