Walkthrough Serious Sam: Siberian Mayhem

In the first task of Serious Sam: Siberian Mayhem you can find 16 secrets. One of them is a reference to the game Portal. Another secret that does not belong to the main ones is a reference to the game Death Stranding. Read how to find all the secrets and Easter eggs!

A Smell of Petroleum Prevails

Go forward and turn right. There is garbage with secret ammunition near the pipe and rock (1/16):

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From the garbage, jump over the pipe and go along the coast to find little Sam's doll. Reference to Death Stranding. A rainbow will appear in the sky.

Return back and iditol along the beach, kill all opponents. When you get to the end of the beach, don't rush up the slope. Go even further along the beach and you will see a container. Take the item hidden inside it to activate the secret trap (2/16):

Climb up the slope where the marker points, and look to the right for wooden piles. There is a secret armor (3/16) at the end of them:

Go back along the piles and look to the right, not far from the house, for boards that can be broken. Having done this, jump into the hole, underground, and you will find a secret rocket launcher (4/16) in the cave with water:

After collecting both secrets, move along the yellow marker, kill the enemies and climb up the oil rig. Go to the control room and watch the cut-scene. After it, a new marker will appear. Do not hurry. Get out of the territory of the oil rig and the child forward without turning anywhere. This path leads to a dead end. There will be enemies at a large location, and there will be a building and a secret explosive (5/16) lying on a box at the end of it:

Side Quest

Return to the drilling rig. There is a path and a blue hologram to the right of it. This is the starting point of the Black Gold Side Quest. The whole task comes down to killing the enemies and getting to the second oil rig. A blue marker points to it. After going there, you will find a box with an additional skill point. Leave the drilling rig and go right to the cliff. There will be wooden piles. Take the secret armor (6/16) at the end, turn around and kill the bull. You can use a rocket launcher or a pistol, but you need to shoot exactly at the head..

After defeating the bull, turn left and walk along the cliff to see a withered tree. There is a first aid kit underneath. Take it to activate a secret trap (7/16):

Enemies can be killed with a rocket launcher. Go along the rocks on the left until you find a wooden house. Secret missiles are hidden behind it (8/16):

Reference to Portal

Follow the yellow marker, go up the stairs and take out the grenade launcher from the case. Finish off all enemies, including psychos in orange suits. Go right. Enemies will jump out of the circular vent. After killing everyone, go to the right around the corner, climb up and finish off a few more targets. Turn right onto the bridge and jump into the ventilation from it. There you will find a secret portal loop (9/16). At the end of it, you will also get a KAIF. This is a health stimulant that is activated by the Z key.

Continue moving along the marker and finish off new enemies. Move along the corridor, where fiery streams are pouring from pipes. Kill all opponents. Shoot from the grenade launcher or shotgun at the red balloons. Then you will find yourself in a spacious area where there are two green demons with four arms on two hills. Kill everyone and go up to the first building on the right. On the bridges, go inside a large building and look for a cache behind the wall in the far-right corner (10/16):

Get to the control room where the marker points, listen to the recording on the recorder and press the red button. Kill all enemies. At the end there will be a wave of skeletons. They are best destroyed with a rocket launcher and a grenade launcher on a shotgun. Enter the elevator and go down. Kill the enemies on the railroad tracks. Behind the train on the right, at the beginning of the location, look for concrete blocks with secret missiles (11/16):

Go to the other end of the location. Go behind the cars on the right, around the concrete block, and find a cache (12/16):

Move through the rooms filled with smoke and use another elevator. This will take you back to where the door is now open. There is a crate with a skill point to the left of the door. Pick up a machine gun and finish off all enemies. Then move under the metal platforms without climbing up the stairs, and in the far-left corner, look for a passage in the wall. It leads to a secret area with secret explosives (13/16).

Finish off all the enemies, climb up and go through the door. Hide behind the truck and finish off the opponents. Take your time as the enemies on the bridge are dangerous. Shoot them with a machine gun. From it you can kill healthy people. Do not rush to enter the building. Go around it and find a secret explosive (14/16) behind the barrier.

Enter the building, read the note and go to the room with springboards. At the bottom, there are crates with time slowing grenades and a skill point. Search them and kill all enemies. They will disappear when the scale at the top of the screen is empty. Then exit through the door, jump onto the box on the left, and from it - onto the visor. This will reveal the secret armor (15/16).

Secret Classic Area

Having done this, go in the same place along the building and shoot at the wooden boxes against the wall on the left. You will see a wall on which you need to attach explosives. For the entire level, we found as many as three! Blow up the wall, go inside and use the portal to get to the secret classic level (16/16).

After that, you will be able to complete the first mission.

Video Walkthrough Serious Sam - Siberian Mayhem

Timecodes for the video walkthrough:

• 01:36 - Ammo cache found
• 01:45 - Reference to Death Stranding
• 04:20 - Secret trap activated
• 04:55 - Secret armor found
• 05:15 — Secret rocket launcher found
• 06:25 — Secret explosive found
• 13:10 - Secret trap activated
• 14:23 - Secret armor found
• 14:55 — Secret missiles found
• 19:30 - Secret portal loop found (Reference to Portal)
• 24:30 - Secret found (K.A.Y.F.)
• 33:05 — Secret missiles found
• 33:25 – Secret vault found
• 37:05 — Secret explosive found
• 41:30 — Secret explosive found
• 45:50 - Secret armor found
• 46:00 - Secret classic area found