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