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