Warning: Combat is dangerous and that animals run away when about 30% of their life is gone and most can outrun you.
Combat in HnH seems really confusing if you try to do it yourself but actually is very simple.
After you buy the will to power, you have the option to attack animals.
Before you even attempt anything, you need to get to your character sheet and go to martial arts.
This screen tells you all the stats of each move if you click on the moves you want to know about.
And make all 5 moves on the right 1/X as this is the best way to set up your combat deck. Make sure to save the deck.
When you enter combat you will see these this HUD pop up in the center of the screen.

The first options you will have are (in order of Picture)
Jump
Left Hook
Dodge
Sidestep
Punch
Each one of these options are hotkeyed to 1-5 left to right.
As you can see is that each option has a color next to it.
These colors has a name to each one but is easier to understand if we just use the colors instead.
The enemy will start to use moves and attacks. There are attacks which do damage, and moves which block attacks.
The enemy uses a move that is color green and blue, the best option to do from here is to use a move to block their attacks.There is no way to know what the color of the animals attacks are on the first encounter. So use Jump,Dodge and Sidestep.This is a way to see what there attack colors are since it will destroy whatever move that there attack was.
The way the combat works is that if you use a blue attack while they have a blue move up, it will block the attack.
If you to use a green attack instead you would bypass the blue move and hit them for X damage.
This goes vice versa with you and the animal. Moves that dont block anything will go away after a certain amount of time.
It depends on what move it was. Each move and attack has a cooldown. Punch has a cooldown of 200 and Left Hook has a cooldown of 300. If you were to use Punch with very low agility. You would have to wait 2 secs while if you used left hook.
You would wait about 3 secs. This applies to moves and attacks. Its good to keep this in mind when fighting.
Another thing about moves is that they have a life bar. If a ant hits you with a green attack while you have a green move up. Your guy will not take damage till that moves life is 0 or empty. Once the moves life is gone. It goes away. Same with animals and you may have to chip down there moves till they are gone to land a single hit while blocking all of its attacks at the same time.
Here's a scenario:
You enter combat with a ant. The ant only can use green and blue attacks. So you put up a dodge and sidestep before it can attack you for a successful hit, This will make one of the moves disappear and lower the other ones life down. You want to keep spamming dodge and sidestep. The ant only uses a move that is green and blue, and a move that is only yellow. So while the ant has the yellow move. you can use either punch or left hook. Left hook does more damage but has a longer cooldown. Punch does less damage but has a shorter cooldown. Use one of those attacks and keep using dodge and sidestep to avoid damage. Keep repeating this till you win.
Now that you understand basic combat. You need to know how to get new moves and attacks.
When in combat, when you use a move or attack. sometimes it will be replaced with a unknown icon. This icon acts like a attack with no colors. You must use this move/attack while the enemy does not have a single move up. If you try to use it while it has a move up. You will not earn/discover that move. This works once per animal. Once discovered, you must put it into your deck of attacks and moves to use it in combat. The move you get depends what animal you were fighting and just by random chance.
You may have noticed that there is unarmed combat and melee combat stats you may increase. Punch and left hook are unarmed attacks. While later attacks like chop and sting are melee attacks. There are also moves specific to one of these two categories but you can find this in the stats of each move/attack. upgrading these increases damage and block health. Also for melee attacks, you require a weapon like a sword or stone axe. And yes the Quality matters for how much damage that weapon will do.
One thing that I have not mentioned is the that blue number above your Options. These are called IP. These are used to perform special attacks/moves. One example is chop, you cant use chop until you have one IP. To get IP you have to have a move that gives IP. Take aim is one of the first moves that you will discover. It gives you 2 IP on use. after you use take aim. you may use chop. each time using chop consumes that one point to use it.
Stats are vital to fight things in this game. The stats that matter in combat are Strength, Agility,Constitution.
Strength: This increases overall damage and block Health
Agility: Decreases the cooldown of moves and attack
Constitution: Increases max character Health
You can fight another player safely by right-clicking them and clicking spar. This gives them a option to say yes or no.
If they say yes. The battle starts like any other fight. While in spar mode. You don't take real damage and armor does not take wear damage. You can not discover moves either while sparing.
If your wandering about archery. Archery is much more simple to do. Once you have archery. you have a shoot option. shoot changes your mouse cursor to an arrow and where you click is where you will start to aim at. A bar will appear that slowly fills up, the more accurate the shot will be and will increase the damage of it. (Do any other option while aiming, it will cancel it) Once you click on the same spot again. You will shoot your arrow. The Quality of the bow and arrow change the damage while upgrading marksmanship just increases the speed the bar fills up. I recommend to stop at marksmanship 20 for just simple hunting. Arrows that are shot have a chance of being able to be picked back up after use. You can also shoot while on a boat and attract animals to shallow water and aim at them point blank range. I have a 80q bow and generally use 15q arrows and deal around 250 - 300 damage which one shots, deer,badger,foxes and rams. Two shots Moose, and boars. except boars are left with around 50 HP and you can run up and just punch it to death. Three shots a ox. and about 4-5 for bears.
Once you have gotten this far into combat. The rest is self explanatory and easy to understand.
For more info or questions just PM me