Serious Sam: Siberian Mayhem achievements

6.25%

Look Ma, I'm a Lumberjack!

Complete the mech sequence and kill all big enemies without shooting

7.03%

Serious Mayhem

Complete Siberian Mayhem on Serious difficulty in Singleplayer

7.81%

David and Goliath

Defeat Sentry Tower with sole hoverboard firepower

7.81%

More Complaints

Find every Dmitry audio and text log

7.81%

Breaking News

Find all of the print media notes

8.59%

Iron Caput

Don't ride the tank - become the tank

9.38%

All Ingenious is Shot

A solution to any problem

10.16%

Hole-in-One

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

11.72%

Oops, I dropped it

Rid the monster of its misery

14.84%

Sam The Explorer

Find half of all the secrets

30.47%

Line up, please!

Kill 5 enemies with one Crossbow shot

37.50%

Traitor's Tale

Find every General Brand audio log