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