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