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