The Sewers
The Sewers is the first part of the Prologue. In this level, you can learn the basic things to start playing Die Young (movement, climbing, combat, crafting, etc...)
Contents
The Start
Nehir starts in a sewer, where she can't escape because of the two guard dogs guarding the entrance. She only has one option, start walking through the mysterious sewer with only a lighter.
The first mission added to the Quest menu is "Escape the Island - Find the Exit of the Sewers".
The First Jump
After walking through the first Sewer, the jump mechanic becomes available, and players are taught the mechanic through a tutorial prompt.
You can easily jump just pressing the Jump button (Controls).
The First Weapon
After climbing the first spot, you find your first weapon--a Wooden Stick (Weapons). This weapon can be used to kill small enemies.
The First Enemies
After taking the Wooden Stick, you will come across your first enemies--Rats. They are small, have low health, and do low damage. If you encounter them in a big group, that's when the problem arises. So, kill them fast and do not allow them to converge.
Ladders
After crouching and walking through a sewer, you will spot the first ladder. To climb it, just press the Jump button (Controls) when you see the indicator. 
Kidnapped
In the Sewers, you will come across a kidnapped victim that you cannot save.
The First Document
In one wall, you can find the first document. There are a lot of documents in the game and you can find them disbursed throughout the map.
The first document is called "Escape Route", and it's a map that'll aid your escape from the Sewers (and with another marked spot).
The First Medkit
You can find the first Medkit in one wall of the Sewers.
One Medkit will fully restore your Health and heals all statuses. (Consumables)
The First climbing spot
In the Sewers, you can also find the first Climbing tutorial. To climb it, just press the Jump button (Controls) when you see the climb indicator.
You can press this button to use "Perception" (Controls) to highlight all possible climbing areas.
The Exit 4
"The Exit 4" (that is shown in the first document) is a locked door that cannot be unlocked.
You'll need to find another way to escape from the Sewers.
The First Crowbar & Padlocks
The Crowbar is a weapon (Weapons) that can be used as a tool to unlock certain doors with padlocks. You can unlock the door from the left side from the site you found the Crowbar (and can be useful for the future too).
Padlocks can be unlocked with Crowbar by holding the "Attack/Use item" button.
Molotovs
You can easily make Molotovs in the containers with fuel. Hold the "Canteen" button (Controls) (with Empty Bottles in the inventory) to make it.
Molotovs can be used to kill groups of enemies like Rats (throw the Molotovs using the "Throw" button (Controls).
The First Human Enemy
In the Sewer, you will find the first Human enemy, in this case, a "Junk" enemy.
Human enemies are stronger than the animals and have more varied attacks (like throwing rocks, jump+attack, evade).
The Final of the Sewers
After killing (or evading) the human enemy, you will go through the last of the tunnels in the Sewer. Leaving the sewer area activates the second Quest "Go past the Harbor".
