To conquer the Level 165 108th colony in Grow Empire: Rome, you must lead your assault with high-armor heavy infantry to absorb wall fire, deploy a battering ram as your primary structural breaker, and hold hero abilities until enemy garrison waves exit the gate. Because regular infantry attacks deal negligible damage against high-level fortifications, protecting the battering ram across the field is the primary condition for victory.
Colony 108 Defensive Obstacles
Unlike standard defensive battles where your city walls take the hits, colony assaults require your army to cross open ground under hostile fire:
- Wall Archers: Elevated enemy archers possess extended range and high armor penetration, quickly wiping out fragile skirmishers and unshielded siege machinery.
- Reinforced Gate: The Level 165 gate has an extensive health pool that standard infantry cannot deplete within the battle timer.
- Garrison Shock Troops: Heavy defenders surge out of the gate in timed waves. If your frontline collapses, these melee units target and destroy the battering ram directly.
Recommended Army Composition
A successful assault requires balancing frontline survivability, sustained structural damage, and ranged suppression.
| Unit | Role | Upgrade Focus | Tactical Function |
|---|---|---|---|
| Heavy Legionaries | Frontline shield | Armor and Health | Absorb rampart arrows and block enemy garrison charges. |
| Battering Ram | Structure breaker | Hull Durability and Damage | Delivers high-impact siege damage directly to the Level 165 gate. |
| Roman Archers | Ranged fire support | Attack Speed and Piercing | Suppress archers on the walls and soften incoming melee waves. |
| Auxilia Cavalry | Interceptor | Speed and Burst Damage | Quickly intercept flanking garrison units and fill broken lines. |
Hero Ability Timing
Triggering hero skills immediately at the start of the battle wastes their impact on an empty field.
- Hold Area Stuns and Buffs: Wait until the colony gate opens and the main defensive wave collides with your Legionaries.
- Melee Heroes: Deploy commanders like Julius Caesar or the Gladiator to anchor the frontline with area stuns and damage buffs right as the lines meet.
- Ranged Heroes and War Horns: Activate ranged command strikes to thin wall defenders and trigger war horns at the point of contact to break the garrison clash quickly.
Step-by-Step Gate Assault Sequence
Follow this deployment sequence to maintain steady pressure on the gate while preserving your siege weapon:
- Deploy Heavy Infantry First: Send your heaviest infantry across the neutral zone to draw initial archer tower targeting before fielding expensive machinery.
- Advance the Battering Ram: Roll out the ram directly behind the infantry screen so it moves inside the protection of the shield wall.
- Counter the Garrison Surge: As enemy defenders exit the gate, trigger hero area-of-effect abilities and archer volleys to clear them before they reach the ram.
- Reinforce the Frontline: Continuously spawn replacement infantry squads to ensure the clash point never shifts backward toward the siege engine.
- Break the Gate: Once the defending wave is eliminated, focus all active hero abilities and remaining units on the gate to collapse the structure before the next garrison wave spawns.
Next Step: Managing Colony 108
Capturing Colony 108 adds a high-tier tax revenue stream to your empire's passive gold income. Immediately reinvest this gold into upgrading your core army tiers, hero skills, and capital tower defenses. Because conquered border territories remain vulnerable to rebellions, keep your general levels high and invest in defensive empire perks to secure the colony permanently against insurgent counter-attacks.
Free Grow Empire: Rome Codes
Current active codes and how to redeem them.
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Player Comments
42 players commented on this guide.
Can you add more details about heroes in a future update?
This saved me time in the early game.
This guide answered the exact question I had.
I wish I had read this before upgrading the wrong thing.