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