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