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