If you don't know how to play Terraria, this guide will help you get started. This is what I did. It is completely optional.
 

Introduction

Terraria can be played in many different ways. If you're a novice player, progress isn't easy. It can be difficult to figure out what you should do next after opening your first world. This guide will help get you to the first boss of the game. This guide will show you how to use ranger, a far-reaching class that uses firearms and throwable items to kill enemies. If this guide is not helpful, i am sorry. I'm not the best writer.
 
 
 

Pre-Hardmode Early

The first thing that you should do is to build a house in order to receive the Guide NPC.
 

 
It's fine to build a few houses for multiple NPCs.) Next you will want to explore the left- and right-sides of your world looking for caves or chests. Chests will usually be found in the underground layer in structures similar to this.
 

 
These chests will always have random loot. But one thing is necessary. If you find any boot that increases your speed (such as hermes boots,) equip them immediately.
 

 
 
For the moment, any of these boots is perfect.
 

 
These boots will significantly increase your speed. For extra speed and bombs, it is a good idea to look for a cloud in your jar. You should also seek out an Extracinator and metals such gold or platinum during your explorations to find a suitable pickaxe for mining desert fossils.
 

 
 
This is how desert fossils look. They are also underground. It will increase your chances not to use ammo. Now, get a hammer. Grab some Bombs from Demolishonist. And now, head to the evil areas of your world. Although it will be hard to avoid taking damage, there are some heart crystals you can use to increase your health. You'll want to explore the areas that are open.
 

 
 

 
 
These are the openings found in Crimson as well as Corruption. These are the Crimson Hearts, Shadow Orbs, and other things found in the caves of crimson or corruption.
 

 
 
They look like this but are surrounded with temporary unmineable iron ore. The Crimson Heart should drop one gun and the Shadow Orb will drop another. This should allow the Arms Dealer, if a house becomes available, to move in. CONGRATULATIONS! You got your first gun. You can now purchase the minishark, the best pre-hardmode weapon in the game. It is quite expensive so make sure to have enough cash. You should build a goblin army after you have destroyed either the Heart or Orb. The invasion will not despawn if the player leaves the game. But now that you have a gun, it should be much easier. The Goblin Invasion should provide enough money to buy the minisharks from the Arms Dealer, provided you don't get killed or pick up your coins. When you have the Minishark, then the Eye of Cthulu should be a piece of cake.
 
 
 

Finally, The Eye of Cthulu

This is it boss. Now you are ready to fight the minishark. You'll want to make an arena with a campfire.
 

 
 
It's fine to do something like this and it shouldn't take too long. The next step is to wait for the boss to appear or use the Menacing Eye summoning item in Chests. The hard part begins. Yes, i said that killing it was easy, but not dying is difficult. Make sure you have the armor from Desert I described earlier. You can increase your chances of not using ammunition by buying extra ammo or an ammobox. You can activate the second stage of the enemy once you have reduced the Eye's Health to half.
 

 
The second phase is a dash attack. It does some serious damage. You can dodge it but only with your boots. Because you don't want your ammo to go to waste, make sure you don’t get hit as hard as possible.
 
 
 

Congradulations

CONGRADULATIONS
 
You've defeated the Eye of Chtulu
 
If you found it useful, please pass it on to someone who does not know how to play.
 
This game was taught to me by a good friend, and I truly appreciate her help.

 
 

 
 
Here we come to an end for Terraria How to Defeat Eye of Cthulu hope you enjoy it. If you think we forget something to include or we should make an update to the post let us know via comment, and we will fix it asap! Thanks and have a great day!