This article gives an explanation of how losses are determined during combat in King of Avalon. It is not a basis for exact ccalculation of losses, but provides an explanation of how the different stats and buffs contribute to losses.

King of Avalon Combat Mechanics

04/15/2018 - -

Explanation of the Combat Mechanics in King of Avalon. Focus on Attack, Defense, Health vs Damage and Damage Reduction and overview of how to increase Damage related buffs.

Scope of this Article

The focus of this article is to explain about Attack, Defense, Health, Damage and Damage Received/Reduction, and for simplicity sake we leave out the complexity of different troop types and troop subtypes. As a basis we use a quite extreme battle report where a very strong player attacks a large amount of troops of a strong player and only loses a few troops. King of Avallon Combat Mechanics 1

Attack, Defense and Health

King of Avallon Combat Mechanics 2

Attack, Defense and Health are the basic stats each troop type has that are relevant for combat and they can be improved in many different ways.

In a battle the difference between attack of one player and defense of another player determines the damage that is done and together with the health of your troops the damage done determines how many troops die.

The exact formulas have not been published by the game makers and you will find that even when total defense of one player is higher than total attack of another player some small losses will be taken.

When looking at Attack, Defense and Health a lack in stats and buffs can be compensated by larger amount of troops, basically no matter how large the difference in boost is, you can theoretically compensate it by large amount of troops.

Because of this, the above shown losses (or lack of losses) could never have occurred based on the attack, defense and health alone, but that is where damage and damage reduction/received come into play.

Damage and Damage Received/Reduction

King of Avallon Combat Mechanics 3

In above description we can consider that the damage based on the difference in Attack and Defense there is 100%. The Damage related buffs of the attacker increase this value and the Damage Received/Reduction buffs of the defender decrease this amount.

This part of the combat calculation is not directly related to the amount of troops you have, which means that extreme differences in Damage related buffs between attacker and defender can result in very weird battle reports. The one shown here is such a report. This is possible in situations where the damage reduction boosts of one player are more than 100% larger than the damage boosts of the other player, because in such cases the damage done by one of the players is cancelled out completely. I don't have the report anymore that I took these screenshots from, but likely the 50/50 survived/losses troops were from different troop types and the resulting damage against one of the troop types was 0.

It is good to understand that these damage and damage reduction/received buffs are separate from attack, defense and health and have a very important function. You should never focus only on Attack, Defense and Health, but make sure you focus on Damage and Damage Reduction/Received as well. If you have a choice (like with Building Prestige Levels), it might be better to focus more on Damage related buffs, as the Attack, Defense and Health buffs can be more easily acquired in other ways (e.g. Gemstones) as well.

Ways to get Damage and Damage Received/Reduction boosts

In this section we list the various ways in which you can get Damage or Damage Received/Reduction boosts.

Building Prestige Levels are a very important way to get Damage related buffs. The Watchtower gives Bowmen Damage, Embassy Cavalry Damage, Forge Infantry Damage, Trap Factory Army Damage, Trading Post Bowmen Damage Received, Wishing Well Cavalry Damage Received, Wall Infantry Damage Received, Storehouse Army Damage Received. You might consider focusing on these instead of the ones providing Attack, Defense and Health buffs.

Lord Equipment can also provide some good Damage buffs. The relatively easy to achieve set Orange Combat Set provides 18% Cavalry/Bowmen/Siege Damage Reduction buffs as well as a 18% Army Damage Received buff. It also provides 18% Bowmen and Siege Damage, as well as 12% Army Damage. This is nice, but can't compare to the best gear available, the Ice Lord Set (and Death Seeker, which gives the same Damage buffs). This set gives 30% Damage Received buffs for all Troop Types plus another 50% Army Damage Received, 30% Damage for All Troop Types and 50% Army Damage.

The Dragon Skills are another good way to get Damage related buffs. The three Flaming Arrows Dragon Skills provide Bowmen Damage buffs against the other three Troop Types and the three Cavalry Claw Skills provide Cavalry Damage buffs against the other three Troop Types. The three Infantry Backbone dragon skills provide Damage Reduction boosts of the other three troop types against Infantry.

The Dragon Spirit Skills provide some relatively small Damage buffs. These are maxed at Dragon Spirit lvl 40 with 8% Bowmen/Cavalry vs Infantry Damage and Infantry vs Bowmen/Cavalry Damage Reduction.

The Heroes also provide some boosts, although not very large. Based on my recent analysis on Damage I revisited some of my earlier choices. For Master Enforcer the Infantry Damage Received that Sir Balin provides as Star 1 boost might be considered more valuable than the Sir Colgrevance Cavalry Health, Bowmen Health and Infantry Defense boosts. If you can increase Sir Balin to 3 Stars (which is tough, I know), the 16% Bowmen Damage Received will be a nice extra. For Master of Arms the 2nd Star 10% Bowmen Damage Boost of the green hero is still nice. The blue and purple heroes give Damage related buffs with 3, 4 and 5 stars.

I think these should be complete, but in case I missed any, please let me know in the comment section.

On a side note, some of the ways that are great to get Attack, Defense and Health buffs, do not provide ways to get any Damage buffs like Combat I and Combat II Research Categories and Gemstones.


I find the effect of the Damage related buffs to extreme. The results as shown in the combat report are too extreme, I think it was a mistake to allow Damage of one of the parties being reduced to zero by these buffs. In my eyes it would have been better if they somehow found a way to limit it so that both parties still do a minimum of for example 50% damage.

I do hope this guide helps to understand the results of combat and helps in focussing the development of your account to do better. If you have amy questions, or any further tips or explanations, please share.

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