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