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