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