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