Serious Sam
Complete the single player campaign.
20 ✓ December 19th, 2012
The doorman should wear a suit
Awake the Guardian of Time.
10 ✓ December 19th, 2012
Chain Explosion
Kill at least 5 headless kamikazes in one explosion.
10 ✓ December 19th, 2012
Classic Outfit
Find Sam's classic outfit.
10 ✓ August 8th, 2013
Kung-fu Fighter
Perform all possible finishing moves in the game.
10 ✓ December 19th, 2012
Wanted Dead or Alive
Rescue professor Stein. So to say.
10 ✓ December 18th, 2012
Get the hell off my ride!
Secure the bird.
10 ✓ December 19th, 2012
Problem solver
Solve the riddle of the Sphynx.
10 ✓ December 19th, 2012
Mission completed
Power up the Timelock.
10 ✓ December 19th, 2012
Serious Beginner
Complete any level in single player.
5 ✓ December 18th, 2012
Killer Jewelry
Kill an enemy using the Mutilator.
5 ✓ December 19th, 2012
Bone Crusher
Smash 20 Kleers with the Sledgehammer.
5 ✓ December 19th, 2012
Maintenance time
Blow a Major Biomechanoid into pieces.
5 ✓ December 19th, 2012
Trick Shot
Kill the kicked enemy while it is still in the air.
5 ✓ December 18th, 2012
Load of Scrap
Rip Scrapjack's head off.
5 ✓ December 19th, 2012
Wall of Bullets
Kill 20 enemies with the Minigun without releasing the trigger.
5 ✓ December 19th, 2012
Are You Serious!?
Complete the game in single player on unmodified serious difficulty.
30 
Jewel of the Nile
Complete the Jewel of The Nile single player campaign.
20 
Look, it's a secret
Find at least 50 secrets in single player.
15 
Co-op Master
Complete the campaign in cooperative with at least 2 players.
10 
Headsman
Decapitate a Khnum.
10 
Deathmatch Master
Win 10 deathmatch games.
10 
Flag Thief
Score a total of 10 points in CTF matches.
10 
Look Ma, I won!
Win a versus match.
5 
Instant Killer
Make at least 3 kills in one Instant Kill match.
5