Full list of all 62 Serious Sam 3: BFE achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 61 achievements, and there is 1 DLC pack containing 1 achievements.
Complete the game in single player on unmodified serious difficulty.
Complete The Guardian of Time in single player on serious difficulty without dying or loading.
Complete a Coin-op cooperative game on normal or higher difficulty.
Earn a medal in Survival.
Earn a gold medal in Survival.
Complete the game in single player in half the estimated time on each level.
Pick up at least 10 extra life items.
Pick up 100 gold coins.
Decorate the Christmas tree on each level to unlock Rodolfo player model.
Decorate the Christmas tree.
Find Sam's classic outfit
Win 10 deathmatch games.
Complete a Beast Hunt match
Score a total of 10 points in CTF matches.
Win one My Burden match with at least 3 players.
Make at least 3 kills in one Instant Kill match.
Win one round in Last Man Standing game with at least 4 players.
Frag 20 players with the Sledgehammer.
Complete a deathmatch game with at least 1 frag.
Win a versus match.
Find all secrets in single player.
Decipher all Egyptian texts.
Use the Mutilator to surf after a Werebull.
Find at least 50 secrets in single player.
Kill 3 enemies in one sprint with the Sledgehammer.
Complete the single player campaign.
Complete the game in single player without manually reloading, aiming or sprinting.
Complete the campaign in cooperative with at least 2 players.
Find the Vista secret.
Gib 20 enemies from close range with a shotgun.
Power up the Timelock.
Kill at least 3 enemies in one spinning Sledgehammer attack.
Blow a Major Biomechanoid into pieces.
Pierce 5 enemies with one Devastator round.
Rip Scrapjack's head off.
Perform all possible finishing moves in the game.
Decapitate a Khnum.
Kill 5 Cave Demons while they're in air.
Kill an enemy using the Mutilator.
Kill at least 5 headless kamikazes in one explosion.
Kill the kicked enemy while it is still in the air.
Kill 20 enemies with the Minigun without releasing the trigger.
Decipher an Egyptian text.
Awake the Guardian of Time.
Kill a Witch-Bride of Achriman.
Tear off 10 Kleer heads.
Solve the riddle of the Sphynx.
Break 10 Soldier necks.
Complete any level in single player.
Kill an enemy with a gib torn from another enemy.
Rip out 10 Rocketeer hearts.
Smash 20 Kleers with the Sledgehammer.
Break 5 Arachnoid necks.
Secure the bird.
Rip 10 Juvenile spiders apart.
Remove 10 Gnaar eyes.
Squash 10 Hatchling spiders.
Rescue professor Stein. So to say.
Complete any level in cooperative with at least 2 players.
Complete the Jewel of The Nile single player campaign.