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