Hey! Thanks for playing the Keyper! This is a game of wandering, searching, and discovery, but looking for all its secrets could be tedious and tiring. Fear not, caretaker; we are writing this guide for you.

There are 5 objects and 19 total keys scattered around the building, although the secret key is divided into four pieces. Let's go one by one.

Also, pretty obvious but, full spoilers ahead. Also, before I start let me tell you that this is the guide to all the keys in the game, but the building is full of paths and characters. Take your time and explore it all.

 🗝️ Front Door Key

You can not miss this one. Just walk straight into Jan in the very first screen of the game, in the Street. He will give it to you in regards of your uncle, Raymond.

🗝️ Trash Room Door Key

Another difficult key to ignore. Cross the hall of the building to your left, through the door. The key to the trash room will be in front of the first note from Raymond, our uncle and former janitor of the building.

Here we will know our goal, not only will we have to collect all the keys if we want to open all the secrets of the building, we also know that our uncle is waiting for us at the top. What does that mean?

 🔑 Flat 1C Key

After entering the janitor's booth and taking the first key, Jan will be more relaxed and will give us the key to his apartment, 1C. In addition, he will unlock the stairs to the 1st floor, so we can go visit him.

 🔑 Flat 1A Key

Poor May! She lost the key to her house after throwing out the trash. What a coincidence that we have gained access to the trash room. By looking in the bin at the back we will find it. If we talk to May, she will thank us and let us into her house. We keep this key too, of course.

🗝️ Heart Key

Just as Raymond left the key to the front door for Jan to give us, he told May to give us the Heart Key. This key is very special, as it will allow us access to one of the most mysterious parts of the building: the secret tunnels. The heart key can be inserted into the cracks you see in the walls of the building, opening secret corridors that communicate with the whole building. So lets explore!

This is when the real game begins. Many doors will be closed from now on, but the whole building is within our reach. Let's start by going back to the trash room and opening the crack in the wall.

🔑 Flat 2C Key

Let us then take the most optimal path. After reading the second note from our uncle, where he reminds us that he is waiting for us at the top, let's take the south passage. This is the tunnel to the basement of the building. In it, we will see a mysterious ghost that will flee as soon as he sees us... and another key in the lower right corner. The key to apartment C on the second floor.

If we go up to the second floor from the hall we will see that apartments B and D are closed. In addition, there is a lot of noise outside the latter. Also, the stairs to the second floor are blocked by an annoying kid named Erik. It seems that we will have to show him more keys and prove to him that we are a real janitor so that he will let us pass.

But this is the Winchester 21 building, where there are a thousand ways to get everywhere. Let's get into these apartments with less... conventional methods.

🔑 Flat 1B Key

In the tunnel where we saw the second note from our uncle, let's now take the west path. This tunnel will lead us to a rather confusing crossroads. We can talk to the lost man in the center, who will tell us a legend about a huge treasure hidden in the tunnels. Will we get to see it?

From here, take the east path, go up the stairs and then the north exit and voilá, we will have entered apartment 1 B without having to cross its door. Here lives a nice old lady who left home because she couldn't stand the noise from her neighbor, but as she knew we would enter here sooner or later, she left us the key to her house so we can take it.

🔑 Flat 2B Key

Now that we have the key to this house... shall we open its door? No, we'd best not. Let's go out the window to the ledge of the facade. From here we can go into 1D, where we'll find out what was bothering the lady so much, or we can go to the left and go up a ladder to the second floor, where there is an open window through which we can enter.

We seem to have entered floor 2D... which has a huge hole communicating it with 2B. Its tenants, Alex and Alex, have had to learn to live together until someone repairs the wall. Next to them we will see the key to 2B, although if we look in the trash can we will see that someone broke the key to 2D. Maybe they are happy with this involuntary renovation?

Going out the front door we will meet a motivated handyman who came to fix the wall, which Alex and Alex won't let pass. And it turns out that someone had already paid him in advance, so until he fixes something he won't move from the site. Maybe he'll come in handy later.

Before we get the next key, let's do ourselves a favor and unlock the stairs to the first floor. Since we have the key to 2c, let's cross the second floor hallway and enter it. There we'll see an attentive father preparing dinner and if we enter through the bathroom door... well, you'll find out for yourself. The man in the kitchen will tell us that it's dinner time and ask us to go talk to his son, Erik. When we do, he will finally move away from the stairs and we can go up and down between the first and second floors whenever we want.

⚿  Secret Key: First piece

Let's go back to the tunnels. If we cross the crack above 2c, we can spy on it's bathroom without fear of being seen. You pervert! Let's take the south tunnel. You will go through several screens, but there will only be one path. Follow it until you reach an intersection of four cross-shaped paths.

Let's take the eastern path. After crossing an aqueduct, we will reach the base of a tower. At the top lives a powerful sorceress and getting to her will not be easy, you will have to solve a small puzzle where you will have to remember which is the right path on a series of stairs. But don't worry, here is the solution:

Alternatively, the correct ladder always have broken bricks.

As a reward for reaching the top, the sorceress will give us the first part of the secret key. Better not to bother her anymore and leave. What will this key open? If we inspect its description, we will see that it is made up of a series of numbers. Strange.

🍞 Bread item

Let's go back to the intersection and take the north road. And here we will meet one of the most charismatic characters in the game, the rat-person. It turns out that she, like us, loves to collect keys. But she's ahead of us, so much so, that she even has plenty left over. She'll tell us that, in exchange for a series of favors, she'll be willing to give us four very, very rare keys. Cool. 

The first favor will consist of getting a piece of bread. Simple as that.

In the rat person's cavern, take the path above. At the intersection, go left. Go straight ahead until you reach the largest crossroads in the game. So many tunnels to explore! Get lost for a while if you want, but there are two in particular that we need to go through.

Take the middle tunnel, to the east. This will take us to the kitchens of the building, which are also the boilers. Pan, the cook, will give us the piece of bread we need.

Left tunnel leads to the freight elevator, right tunnel to the kitchen, 

where we'll be provided with delicious bread.

💳 Flat 2A Key

Let's leave the kitchen but before we go back to the rat man let's take the tunnel in the center, but this time from the west. Crossing a bridge we will come to what looks like an old cargo lift, which someone would have to repair. Wait, haven't we met the perfect man for the job...?

Let's go back to the rat. In exchange for the bread, she will give us the key to the 2A. You can go back to the second floor and enter, but be prepared, because you're in for a long, long speech.

🗝️ Third Floor Key

Now that the rat has eaten a piece of bread, her throat is dry. She asks us for a beer, but we'll have to make a few extra stops before we can get one. Let's go back to the second floor and talk to the handyman, who will tell us that he will wait for us on the bridge in front of the freight elevator. If we go back there, he will tell us that he has had time to repair it and now it works. This elevator opens the doors to many new places, but among them, a bar. 

Indeed, the entire third floor of the building is a gigantic bar. Stop by the terrace and admire the view. There we will meet Dan, Jan's father, who will give us the key to the third floor. Now we can unlock the stairs leading to the second floor. If we talk to the bartender, he will tell us that to get a beer we need money... and will give us a clue where to get it.

💰 Silver coin item

Time to get wet. You can use the lift, or go down from the elevator pit, to get to the sewers door, which is open. Swim through the sewers until you reach an intersection. Take the path above. Following it you will come to a huge subterranean lake, and on the right side will be Inyaki, the tenant of 1D, who was lost down here a long time ago. In exchange for hearing his story he will give us the coin we need.

⚿  Secret Key: Second piece

Oh, whims of fate. Inyaki got lost down here looking for his key, but he didn't know he would find it if he had taken the path below at the intersection. Following it will lead to another puzzle which, beware, leads to a secret path on the left side that will take you to the second piece of the secret key. Two more numbers.

Secret pipe leading to the second piece of the Secret Key.

🔑 Flat 1D Key

Go back to the puzzle and solve it. Or not, here is the solution:

Pipe puzzle solution.

Continue swimming until you reach the Pipe Willow. Just below one of the pipes is the 1D key. If you go through the willow tree you will come to another note from Uncle Raymond.

🍺 Beer item

Now that we have a coin, we can pay for our beer. Go back to the third floor and talk to the bartender, who will gladly give it to us.

🗝️ Fourth Floor Key

In exchange for the beer, the rat will give us the key to another whole floor: the fourth floor. If you thought a bar was the weirdest thing you'd find in the building, hold your horses.  If we talk to the rat again she will ask us for a favor, she wants the old dress she used to wear, so let's go to the fourth floor. You can reach it by going down south at the bar and taking the stairs to the west.

🗝️ Fifth Floor Key

Cross the corridor and then get on the boat (a boat??). Instead of going up the mast already, continue to the right. On the ship's bow will be the key to the fifth floor. Now you can climb up the mast to meet the ship's owner, and you'll also get a glimpse of your objective: the true rooftop.

Location of the fifth floor key, and stairs to the fifth floor.

👗 Rat-person's dress item

Returning to the hall on the fourth floor we will find the stairs to the fifth floor. Here it is difficult to get lost, although there are some bifurcations, following the path along the ropes we will reach the dress, guarded by an ominous raven.

🗝️ East Key

Let's go back to the rat, but before entering, look for a hidden path to the right of the lower entrance. The rat commented that she was bored of collecting keys and it seems that this is where she kept them, however... all of them are useless except for one in particular, the east key. What will this key open?

🔑 Basement Key

In exchange for the dress, and in the midst of a lot of memories that are coming back to her head, the rat (or the person?) will give us the key to the basement corridor. If we go there we will discover a dark secret... Also, if we talk to her again, she will ask us one last favor. She wants to know her name, the real one, the one she had before.

🗝️ West Key

Crossing the upper door of the basement corridor we can take the dang key that we saw from the intersection of the tunnels from the beginning. The West key and the East key are twins. What will they open? Let's find out.

⚿  Secret Key: Third piece

Now we have to get to the sixth floor. And for the moment, the only way to do that is through the tunnels. What do Pan's kitchen and apartment 1B have in common? Well, both rooms have a fireplace. Have you ever thought of entering through one of them? Don't worry, you won't get burned. Doing so you will reach a secret sauna and, leaving it and following the path, you will reach apartment 6A, on the sixth floor.

In it, in the upper right corner we will see some stairs where, if we climb them, we will arrive to two doors. The east door and the west door. Open them using the east and west keys respectively.

Yes, there are secret paths behind the fireplaces. Don't worry, you won't get burnt.

By doing so we can exit through the roof of the apartment and get to the chimneys. Go down them using the clotheslines and ledges, and enter through the hole. Follow the path until you reach a labyrinth full of... spiders. But don't worry! They won't hurt you. Although if they touch you they'll send you back to the door. Try to trick them and be faster than them to cross. If you follow the path you will reach the third piece of the secret key. Another two numbers, of course.

🐀 Rat-person's real name item

Who would know the name of a giant rat that lives within the walls of the building? Well, the person who knows the most about it. It's time to look for the guru, although you may have met him before. In exchange for showing him some keys, he will tell us interesting things. And if we show him the key to the basement, he will tell us who lived there. His great-great-grandson Lan and... a girl named Jennifer.

⚿  Secret Key: Fourth piece

Return to the rat-person's, or rather Jennifer's, den once again. Memories of her old life flood her head now that we have been slowly restoring her humanity. She knows she did something very bad to Lan, and she will go with him, to the basement. Before that, though, she'll give us the last key, the rarest key she possesses, the last piece of the secret key.

🗝️ Elevator Room Key

Let's follow her to the basement. The corpse there turns out to be Lan's, her ex-boyfriend, who we have seen throughout the game as a ghost following us everywhere. After an emotional scene, we will be able to pick up the key that created the discord between the two of them, the key to the elevator room. You will be able to enter it through the elevator hole on the ground floor.

Congratulations, if you have followed the guide up to this point then you have picked up the last key of the game. All the doors of Winchester 21 are now open for you. Fix the elevator and get to all the places more easily. Use it to reach the true rooftop... and the true basement. Discover all the secrets of Winchester 21.

But wait, we still have a door to open, don't we? What is the secret key for?

Well, it's a secret! Find out for yourself!

Thank you very much for playing The Keyper! See you in the next one!