Grow Empire: Rome: How to Beat Wave 6800 and Finish the Game

To beat Wave 6800 and reach 100% completion in Grow Empire: Rome, reallocate your general perk points entirely into combat stats, deploy frontline infantry in staggered intervals to keep enemies stalled outside the gate, and reserve your high-impact hero burst abilities for incoming siege engines rather than the opening cavalry charge.

Tower and Wall Defensive Priorities

Wave 6800 introduces extreme health scaling and heavy siege units, including battering rams and catapults that can quickly breach your wall if left unimpeded. At this stage, your primary defensive structures must be at their maximum upgrade caps to provide sufficient armor penetration and area disruption.

Defensive Station	Primary Target Focus	Tactical Function	Strategic Priority at Wave 6800
Heavy Ballistas	Battering Rams & Bosses	High single-target armor penetration	Eliminates heavy siege engines before impact
Splash Catapults	Armored Infantry Clusters	Broad area-of-effect disruption	Clears swarms to prevent gate crowding
Wall Archers	Fast Cavalry & Light Troops	Rapid sustained physical DPS	Softens incoming lines across the field
Fortified Gate	Melee Vanguard Breaches	Damage absorption & stalling anchor	Buys recovery time for hero ability cooldowns

Prioritize archer range and attack speed so wall archers chip away at incoming units immediately upon entry. Heavy Ballistas must remain focused on targeting single high-threat engines, while Catapults thin the clustered infantry screens defending them.

Hero Ability Rotation Rhythm

Panicking and casting your strongest abilities during the opening seconds leaves your fortress unprotected against the heavier secondary wave. Execute your ability rotation across four structured phases:

Initial Charge Phase: Hold your heavy area-of-effect skills when the vanguard cavalry approaches. Let your wall archers and tower ballistas handle the initial scouts.
First Engagement Phase: Trigger your commander buffs or defensive war cries only after your Roman infantry makes physical contact with the barbarian frontline.
Siege Cluster Phase: Cast high-damage area skills, such as boulder barrages and arrow storms, directly onto the dense secondary cluster where battering rams and armored champions advance together.
Cleanup Phase: Use single-target stuns or knockback abilities on any remaining heavy champions to keep them isolated under sustained tower fire.

Frontline Troop Deployment

Ground infantry at Wave 6800 serves as a temporary barrier designed to stall enemies inside your tower kill zone rather than act as primary damage dealers. Deploying your entire army at once risks losing the entire force to an enemy catapult strike or area attack, leaving your gate completely exposed.

Maximize the upgrade tiers for your Roman Spearmen and heavy Legionaries to ensure they survive multiple hits from end-game champions.
Release troops in small, staggered cohorts instead of sending your full reserve immediately.
Time subsequent deployments so that fresh reinforcements arrive right as the preceding line begins to break, maintaining an uninterrupted chokepoint just outside the gate.

Pre-Battle Stat and Perk Checklist

Before initiating Wave 6800, ensure your account build is entirely dedicated to combat survival:

Perk Allocation: Reallocate General EXP points out of passive gold and experience boosters and invest them fully into wall health, troop defense, tower attack speed, and skill cooldown reduction.
Card and Gear Buffs: Equip artifacts prioritizing percentage-based physical defense, active cooldown reduction, and critical strike probability.
Skill Readiness: Ensure all hero abilities and tavern war horns are off cooldown before starting the battle.
Siege Focus: Monitor battering rams continuously; if a ram nears melee range of the gate, redirect your active hero abilities to destroy it immediately.