Unit Specialization Tower — The Complete Guide

The Unit Specialization Tower is one of the most impactful long-term progression systems in Rise of Castles — and one of the most misunderstood. Most players invest badges without a plan, spreading points across all columns without understanding what they're actually unlocking.
This guide covers everything: how the system works, what each column does, which Legion Skills are worth prioritizing, how the research types differ, and which path to follow depending on your playstyle.
🏗️ How the Tower Works
The Specialization Tower is a badge-based research system organized into 8 columns and 3 troop types (Footmen, Archer, Cavalry). Each troop type has its own independent progression — switching troops doesn't reset your progress, but bonuses only apply when you're running the corresponding troop.
Each column contains 4 researches and unlocks a Legion Skill when all 4 are complete. The Legion Skill is the primary reward — not the individual stat bonuses, which are incremental.
The most important rule: You need to complete all 4 researches in a column to unlock the Legion Skill. Partial column completion gives stat bonuses but no skill.
📊 The 8 Columns — Costs and Legion Skills
Column Structure
Each column has 4 researches across two categories:
Training — focuses on general stats (Might, Resistance, HP)
Encounter / Siege / Defensive / Neat — specialized stats depending on context (non-siege, siege attack, siege defense, etc.)
Total Badge Costs Per Column
Column Total Cost Cumulative
I 15,647 15,647
II 31,294 46,941
III 62,588 109,529
IV 125,176 234,705
V 250,352 485,057
VI 500,704 985,761
VII 160,696 1,146,457
VIII 223,382 1,369,839
Key insight — confirmed by players: Despite official support stating that full Column VI completion is required, community testing has confirmed that completing only the 1st (Training) and 4th (Neat Formation) researches within a column is sufficient to unlock the next one. This applies to all columns, including the gate to Columns VII and VIII.
This is a significant efficiency discovery: within each column, you can complete Training + Neat Formation to advance, then return to fill Encounter Battle, Call of Glory, Siege Skill, and Defensive at your own pace — saving you from being locked behind expensive siege researches before accessing the next column's Legion Skill.
⚔️ Legion Skills — All 8 Columns, All 3 Troops
Legion Skills are the real reason to complete columns. Here's what each one does:
Column I Legion Skills
Troop-Skill Effect
Footmen-Reserve Supply When troop power drops below 50% for the first time, 100% chance to instantly restore troops (120% recovery rate)
Archer-Rapid Shots First 4 rounds: chance per round (Archer squads × 8%) to chain mid and back enemy squads — shared damage between them
Cavalry-Rescue Skills After casting a prep skill, 35% chance to restore troop power (30% recovery rate)
Column II Legion Skills
Troop-Skill Effect
Footmen-Target Tactics Rounds 5-8: after casting a combat skill, chance (Footman squads × 8%) to gain Targeted Attack — ignores enemy dodge for 1 round
Archer-Sniper Archer Rounds 1/3/5/7: 35% chance to increase Fatal Blow and Destructive Strike multiplier by +50%
Cavalry-Vanguard's Suppression Rounds 2/4/6/8: chance (Cavalry squads × 20%) to reduce front-row enemy healing by -10%
Column III Legion Skills
Troop-Skill Effect
Footmen-Cover the Weak Point When your Footman squad has the lowest troop power among all squads, 35% chance to split damage taken with all friendly squads for 1 round
Archer-Strong Resistance When your Archer squad has the highest troop power, 35% chance to take -50% damage when under CC (Suppress/Silence/Disarm/Confuse)
Cavalry-Breakout When your Cavalry squad has the lowest troop
power, 35% chance to gain Sober status (immune to CC) for 1 round
Column IV Legion Skills
Troop-Skill Effect
Footmen-Locate the Weakness Starting round 5: chance (Footman squads × 15%) to reduce the highest-HP enemy's Base Might by -10%
Archer-Focused Attack Rounds 2-4: chance (Archer squads × 15%) to make the lowest-HP enemy take +20% Physical and Skill Damage (stackable)
Cavalry-Charging Forward Rounds 2/4/6/8: chance (Cavalry squads × 20%) to ignore 5% of the enemy's Base Resistance
Column V Legion Skills
Troop-Skill Effect
Footmen-Sharpened Blade Rounds 4, 5, and 6: all Footman squads deal +15% damage
Archer-Timing of Attack Start of battle: chance (Archer squads × 30%) to deal +25% damage to 1 enemy squad for 3 rounds
Cavalry-Breakout Round 1: 2 random Cavalry squads deal +10% damage for 2 rounds
Column VI Legion Skills
Troop-Skill Effect
Footmen-Accumulation Rounds 5 and 6: all Footman squads have +5% chance to cast skills
Archer-Combo After casting a combat skill, 70% chance to deal additional Skill Damage (80%) to 1 random enemy
Cavalry-Null-Heal Rounds 3 and 6: chance (Cavalry squads × 25%) to stop 1 random enemy from restoring troop power for 1 round
Column VII Legion Skills
Troop-Skill Effect
Footmen-Impenetrable FormationFirst 3 rounds: healing received by your Footman squads +35%
Archer-First-Arrow Declaration Start of battle: chance (Archer squads × 20%) to reduce all enemy Combat Speed by -50 for 1 round
Cavalry-Bash From the Back Starting round 2: first skill cast by your back-row Cavalry deals +50% damage (once only)
Column VIII Legion Skills
Troop-Skill Effect
Footmen-Shield-Wall Resonance In a full-Footmen legion, -5% chance enemies trigger Fatal Blow against you, -5% chance enemies trigger Destructive Strike
Archer-Purifying Arrows Rounds 2 and 4: 40% chance to remove a random negative status from one of your Archer squads
Cavalry-Headstarter Rounds 1 and 3: chance (Cavalry squads × 25%) for Cavalry squads to gain First Attack status for 1 round
🔬 Understanding the Research Types — and What to Prioritize
Each column contains 4 researches. The most important thing to understand is that you do not need to complete a full column before starting the next one — the only exception is Column VI, which must be fully completed before Columns VII and VIII unlock.
This means you can — and should — cherry-pick the highest-value researches across columns rather than completing each one sequentially.
Research Types by Priority

The Smart Badge Strategy
Because columns can be partially completed, an efficient player prioritizes Training researches across multiple columns first, then returns for Encounter/Call of Glory, and saves Siege and Defensive for last. This maximizes the universal stat gain early while leaving the niche bonuses for when badges are more abundant.
💡 Want a personalized path? The ROCAcademy Specialization Tower Planner lets you build a custom research order with drag-and-drop, filter by research type, simulate badge costs to any goal, and save your progress to the cloud (VIP members). Access it free at tools.riseofcastles.net/specialization — or unlock the full planning features with a VIP subscription at riseofcastles.net/en/vip.
🧭 Recommended Research Order
The data below shows a suggested sequence for spending Virtue Badges — prioritizing general base stats, non-siege, and battlefield bonuses before siege-specific researches.
The logic behind the sequence is straightforward:
Within each column, the priority order is:
Training — universal bonuses, always first
Enhanced Tactics — battlefield base stats
Encounter Battle — non-siege PvP (Eden, open world)
Call of Glory — rally and battlefield
Siege Skill — siege attacks
Defensive Skill — siege defense
Neat Formation — mixed, lowest priority
Across columns, the recommended flow is:
Don't wait to finish a column before starting the next — Training II is more valuable than Siege Skill I
Prioritize the Training research of the next column before returning to lower-priority researches in earlier columns
Complete columns fully only when you're close to unlocking the Legion Skill
🎯 Stat Priorities — What Each Troop Actually Needs
Before listing priorities per troop, it's important to understand what each stat actually does — because the order matters and isn't intuitive at first glance.
Understanding the Key Stats

Additional Notes
Damage is usually stronger than raw attack stats because it multiplies multiple damage sources at once.
Might and Tactical Might are separate systems:
Might = Physical Attack scaling
Tactical Might = Skill Damage scaling
Resistance and Tactical Resistance gain value depending on the current meta:
Physical-heavy meta → Resistance becomes stronger
Skill-heavy meta → Tactical Resistance becomes stronger
Combat Speed is often underestimated but can completely change battle outcomes by enabling earlier skills and crowd control.
🏹 Archer — Glass Cannon, Speed-Dependent
Stat distribution (TS — Sharpshooter): Attack 64% · Defense 27% · HP 9%
Archer has the highest attack ratio of all troops and the lowest defense. The design philosophy is clear: kill before being killed. Every stat choice should amplify output or help archers act faster.
Priority order:
#-Stat Reason
🥇-Damage Direct output multiplier — amplifies every attack and skill simultaneously
🥈-HP Low base HP means any HP% bonus is critical for survival🥉-Combat Speed Archers need to act first — going before the enemy means more skills triggered before taking damage
4-Tactical Might Meta Archer heroes (Al-Hawra, Henry II) deal primarily skill damage
5-Might Secondary — amplifies physical damage component
6-Resistance Low base defense limits the absolute value of Resistance gains
7-Tactical Resistance Lowest priority for a troop built to kill, not tank
🐴 Cavalry — Offensive Carry, Skill-Heavy
Stat distribution (TS — Apocalypse Herald): Attack 52% · Defense 36% · HP 12%
Cavalry is attack-leaning but with more survivability than Archers. The meta's dominant Cavalry heroes (Don Quixote, King Arthur) deal a mix of physical and skill damage — so both Might and Tactical Might are relevant, but Tactical Might has the edge in the current meta where Parry and Bee Sting deal skill and physical damage respectively.
Priority order:
#-Stat Reason
🥇-Damage Direct multiplier that benefits Don Quixote's Bee Sting, Parry, and Fight or Die simultaneously
🥈-HP More troop power = more damage dealt per round throughout the battle
🥉-Tactical Might Don Quixote's Parry (530% Skill Damage), King Arthur's skill set — all amplified directly
4-Might Amplifies Bee Sting (Physical) and normal attacks
5-Resistance Moderate base defense; Resistance gains have reasonable value
6-Tactical Resistance Less critical than Resistance for Cavalry's combat role
7-Combat Speed Useful but lower priority than offensive stats for front-row Cavalry
⚔️ Footmen — Tank and Sustain Engine
Stat distribution (TS — Hero): Attack 40% · Defense 47% · HP 13%
Footmen is the only troop type where Defense exceeds Attack (ratio 0.86). They are built to absorb damage and keep heroes alive — not to be the primary damage dealer. In the Alexander + Achilles + La Hire meta, Footmen are the backbone of sustain compositions.
Priority order:
#-Stat Reason
🥇-Damage Even tanks need to deal damage. Damage % amplifies everything and remains the best offensive stat
🥈-HP Highest base HP of all troops — every HP% bonus translates to the most absolute troop power
🥉-Tactical Resistance The meta is dominated by skill-heavy heroes. Reducing skill damage taken is critical for survival
4-Resistance Highest base defense — each % of Resistance adds more absolute value than for Archer or Cavalry
5-Might Secondary for Footmen; their heroes deal damage but the troop's attack base is the lowest
6-Tactical Might Useful for Footmen heroes with skill damage, but lower priority than survival stats
7-Combat Speed Least impactful for a troop built to absorb, not initiate
The ROCAcademy Specialization Tower Planner includes a Cost Simulator that lets you calculate exactly how many badges you need to reach any goal:
Complete all researches — full tower completion estimate
Complete a specific column — useful for planning Legion Skill unlocks
Reach a target % completion — set a milestone and track your path
Enter your daily badge income to get an estimated days and weeks to reach each goal. This is the most practical planning tool for long-term badge investment decisions.
⚡ Using the Efficiency Tab
The Efficiency tab ranks every research by bonus value per 1,000 badges spent:
Efficiency Score = Total Bonus Points / (Badge Cost / 1,000)
Tier Threshold What it means
🥇 S Top 75% of max score Exceptional value — prioritize
🟢 A Top 50% Good value
🔵 B Top 25% Average
⚫ C Below 25% Low efficiency — complete last
Use this tab when you have limited badges and need to decide between researches within the same column. S-tier researches within a column should always be completed before C-tier ones when you're badge-constrained.
⚔️ Footmen Legion Skills

🐴 Cavalry Legion Skills

🏹 Archer Legion Skills

💡 Key Tips & Common Mistakes
You don't need to complete each column fully before moving on (except for Column VI). The only hard gate is Column VI → VII/VIII. For all other columns, it's perfectly valid to complete the Training research of Column IV before finishing the Siege Skill of Column II. Prioritize by research type across columns, not by column number.
You only need Training + Neat Formation to unlock the next column — confirmed. Community testing has confirmed that completing the 1st (Training) and 4th (Neat Formation) researches within any column is sufficient to unlock the next one. You do not need to complete Siege Skill or Defensive researches to advance. This means you can run through all 8 columns at minimum cost, unlock all Legion Skills, and return to fill the remaining researches in priority order — with the most expensive and situational researches saved for last.
Complete each column fully before moving on (for Legion Skills). Stopping at 75% completion of a column means you've spent most of the badges but got none of the Legion Skill reward. Finish what you start.
Training researches are always worth it. The Training research in every column applies in all contexts — non-siege, siege, battlefield, everywhere. Always complete Training first within each column.
Use the cloud save if you're a VIP member. Your progress is automatically synced across devices. If you switch phones or clear browser data, your research data is preserved in the cloud. Local storage alone is not sufficient backup.
Badge income matters more than you think. At Column VI's cost (500,704 badges), a player earning 1,000 badges/day needs 500 days. A player earning 3,000 badges/day needs 167 days. Maximizing your daily badge income — through events, Eden, and alliance activities — is as important as knowing where to spend.
🔗 Plan Your Build
The free Specialization Tower Planner lets you track your progress, filter researches, and see your bonus breakdown across all three troop types:
tools.riseofcastles.net/specialization — Free for all players
For a fully personalized experience, VIP members unlock the complete planning suite:
Custom drag-and-drop research paths — set your own order and save it per troop type
Cost Simulator — calculate exact badge cost to any goal with daily income estimates
Efficiency Ranking — find the best value researches remaining in your build
Cloud Save — progress synced across devices, never lost
My Build export — shareable PNG card of your current build
👑 Become a VIP at riseofcastles.net/en/vip
Guide based on official game data from the ROCAcademy Tools database. Updated for Season X28+.
— Valasky


