Serious Sam: Siberian Mayhem Steam Key

Black Gold

The Refinery

Energize

The Processing

Hide and Seek

Heart of Russia

Alpha and Omega

The Last Train Departed

The End

Extremely Uncool

The Operator

Dogs and Frogs

Eye for an Eye

Inborn Plumber

The Dark Tower

All Ingenious is Shot

A solution to any problem

All Ingenious is Simple

The smartest man on Earth

All Ingenious is Hard

Sweet Kompot

Serious Archaeologist

More Complaints

Find every Dmitry audio and text log

Breaking News

Find all of the print media notes

Traitor's Tale

Find every General Brand audio log

Death from Above

Now it's your turn

Back To The Future

Rise and levitate

David and Goliath

Defeat Sentry Tower with sole hoverboard firepower

Hole-in-One

Stay here and kill them all... with a black hole

Critical Temperature

Kill 10 enemies with one Burner explosion

Fight Fire with Fire

Kill Draconian Burner with a Burner gun

Combustion Tamer

Kill 30 enemies while riding one Draconian Burner

Line up, please!

Kill 5 enemies with one Crossbow shot

Look Ma, I'm a Lumberjack!

Complete the mech sequence and kill all big enemies without shooting

Iron Caput

Don't ride the tank - become the tank

Veni, Vidi, Vici

Beat the final boss in Singleplayer on Serious difficulty without loading mid-battle savegames

Old School

Complete Siberian Mayhem without learning a single S.A.M skill in Singleplayer

Serious Mayhem

Complete Siberian Mayhem on Serious difficulty in Singleplayer

Massacre Party

Complete Siberian Mayhem on Serious difficulty in Cooperative with enemy multiplier set to at least x2

Oops, I dropped it

Rid the monster of its misery

Everyone Is A Minesweeper

Ok, And?

Sam The Explorer

Find half of all the secrets

No Stone Unturned

Find all secrets

Part-Time Hero

Get half of all achievements

Here Comes the Pain

Get any medal on Castle of Pain survival level

Hero-glyphic

Get any medal on Horus Sanctuary survival level

Superior Species

Get any medal on Kleer Fortress survival level

Feng Shui Fight

Get any medal on Dragon Gates survival level

Aurora Borealis

Get any medal on The Snowrider survival level

Welcome to the Jungle

Get any medal on Monkey Canyon survival level

Extreme Survivalist

Get a gold medal on any survival level

Hero

Unlock all Achievements.