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