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