There are actually five of them!
 
 

Intro

This guide shows how to get to arguably the best series of secrets in the game.
 
 
There are almost no spoilers for the secrets themselves. Screenshots contain the information about how to get to the secrets.
 
 
If you are a true Serious Sam fan, you’ll most likely enjoy these.
 
 
 

Chapter 1

You’ll need some C4 to be able to open the entrance to the secret.
 
 
When you get to the first Oil Refinery, follow the road that leads to a right side of map:
 
 

 
 
Road ends near the house. From there, go to the right side:
 
 

 
 
In the end of this path, you’ll notice a small building. Pick up a C4 that opens the first secret:
 
 

 
 
When you get to AK-47 weapon, follow the screenshots for the second C4:
 
 

 
 

 
 

 
 
At the end of the level, right after you exit the arena room with the jump pads where you have to kill tons of enemies, DO NOT go to the left side or else you’ll finish the level, instead go to the right side, break some wooden boxes, and use your C4 to get to the first secret:
 
 

 
 

 
 
 

Chapter 2

After the giant robot with chainsaw section, go where the blue arrow points if you need a C4, and go where the red arrow points if you can open the second secret:
 
 

 
 
If you went for the C4, go here:
 
 

 
 

 
 
If you go right, simply use your C4 and get to the secret:
 
 

 
 
 

Chapter 3

As soon as you get near the gate section, go to the right side of it:
 
 

 
 
From there, simply go down and run to the end of the canyon:
 
 

 
 
In the end you’ll see a tunnel:
 
 

 
 
Go inside. You’ll notice the door with a secret, but it’s closed:
 
 

 
 
To open it, you should find a yellow machine within a red light and go behind it. There’s a switch that opens the door:
 
 

 
 

 
 
Press it and go back to the door.
 
 
 

Chapter 4

When your team finds the train and splits up, go to the left side and use your C4 to open the secret:
 
 

 
 

 
 
 

Chapter 5

After the giant a*s wave of monsters in the field with like 8 Khnums, when you enter the town, follow the red arrow to locate the last secret and to get the achievement for finding all five secrets:
 
 

 
 

 
 

 
 

 
 

 
 

 
 
This is all for Serious Sam: Siberian Mayhem Best Chapter Series of Secrets in Game hope you enjoy the post. If you believe we forget or we should update the post please let us know via comment, we will try our best to fix how fast is possible! Have a great day!