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