Goodgame Empire Defense Calculator

Estimate whether your keep, center, and flanks can survive incoming waves by combining troop split, wall, gate, moat, tools, castellan bonuses, and attacker composition.

⚔Battle Presets

🛡Defense Inputs

Defender unit profileSets base melee and ranged defense values used in formulas.

Attacker unit profileConverts incoming melee/ranged attackers into attack power.

Melee defenders stationed

Ranged defenders stationed

Attacker melee troops per wave

Attacker ranged troops per wave

Incoming wave countEach wave repeats the attacker melee and ranged counts.

Defensive battle plan

Wall bonus after attacker tools (%)

Gate bonus after attacker tools (%)

Moat bonus after attacker tools (%)

Defensive tool strength (%)Represents active mantlets, rocks, arrows, fire, and moat tools.

Castellan melee defense bonus (%)

Castellan ranged defense bonus (%)

Defenders assigned to center (%)Remaining defenders are split evenly across both flanks.

Attack pressure on center (%)Remaining attackers are split evenly across both flanks.

Morale, support, or uncertainty adjustment (%)Use positive values for extra support; negative values for poor setup, lost tools, or unknown attacker bonuses.

Defense Result

Survival Ratio

effective defense vs attack

Estimated Survivors

defenders after all waves

Wave Endurance

0 / 0

waves likely absorbed

Weakest Lane

Center

check lane margin

📊Lane Comparison Grid

Left Flank

Run the calculator to fill lane pressure.

Center

Run the calculator to fill gate pressure.

Right Flank

Run the calculator to fill lane pressure.

Overall

Run the calculator to summarize survival.

⚙Current Assumption Snapshot

85%

Wall Bonus

55%

Gate Bonus

45%

Moat Bonus

70%

Tool Bonus

This calculator is a planning model. Enter the bonuses that remain after attacker tool reductions so the result reflects your observed battle setup.

📘Reference Tables

Defender profile	Melee defense	Ranged defense	Best use
Emergency militia mix	48	46	Fast fill when support is late
Regular mixed defenders	62	60	Baseline castle testing
Veteran defensive troops	92	88	Standard prepared defense
Elite defensive troops	118	116	Strong wall and keep defense
Royal guard defenders	138	132	High value castle hold
Ranged tower guards	105	145	Ranged counter lanes

Attacker profile	Melee attack	Ranged attack	Pressure pattern
Standard raiding wave	90	84	Moderate all-lane probe
Balanced veteran attackers	135	135	Even melee and ranged load
Ranged heavy sweep	104	176	Strong ranged pressure
Nomad style pressure	150	130	Melee-leaning event pressure
Horror strength assault	185	162	High attack power drill
Mixed elite assault	165	155	Late-game mixed wave

Modifier layer	Typical range	Model treatment	Watch point
Wall bonus	0% to 160%	Applies to flank and center defense	Reduced by ladders and siege tools
Gate bonus	0% to 140%	Weighted mostly into center lane	Important when center pressure is high
Moat bonus	0% to 140%	Applies across all lanes	Can disappear if countered by tools
Castellan melee	0% to 120%+	Boosts melee defender power only	Low value weakens shield walls
Castellan ranged	0% to 120%+	Boosts ranged defender power only	Low value weakens tower lines
Defense tools	0% to 150%+	Added as active lane tool strength	May burn off in later waves

Distribution setup	Defender center	Attacker center	Interpretation
Even front	50%	50%	Center and flanks receive balanced pressure
Gate stack	60% to 70%	60% to 80%	Strong center defense against gate attacks
Flank deny	30% to 40%	20% to 40%	Most defenders cover both walls
Center bait	35% to 45%	65% to 80%	Useful only if flank tools remain strong

💡Defense Tips

Check lane margins: A high total survival ratio can still lose if center or one flank is badly under-covered. Use the weakest lane card before changing tools.

Model tool burn: If tools are likely removed by early waves, run the preset once with full tool bonus and once with a reduced late-wave tool value.

Goodgame Empire defense involve the management of a variety of variable. The defense of the Goodgame Empire isnt dependent upon the numbers of troops you have defending the castle. Instead, it is dependent upon the interaction between your troops, your walls, your gate, your moats, your tools, and your castellan bonuses.

The Goodgame Empire defense calculator allow you to input these variables into a form. The form then allows the calculator to mathematically calculate the defense that you will have. Using the calculator remove the need for you to keep track of each of these coefficient yourself.

How to Use the Goodgame Empire Defense Calculator

One of the first variables that you must consider is the distribution of your troops across the various lane of your castle defenses. It is possible that you have a balanced defender profile, but it is also possible that your center defense is weak relative than your other defensive lanes. You can use the defender center and attacker center percentages to help you decide how many troops to assign to your gate and how many to assign to your wall.

It is important to avoid having too much troops at the center and too few at the other gates, or you will lose troops before you can effectively defend your outer walls. Another variable that affects the defense of your Goodgame Empire is the wave count. Each count present a variety of different problems for the castle owner.

For instance, one heavy wave can have the same impact as several lighter waves, and the lighter waves can strip away your tool bonus. The tool burn caution plan can help you prepare for such a situation by lowering your overall defense multiplier. Using the defense calculator