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