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