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