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