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