Here is the full list of all 76 Serious Sam Fusion 2017 (beta) achievements.
Obtain the Water Element.
Kill 200 Enemies with the Thompson Submachine gun.
Obtain the Fire Element.
Obtain the Earth Element.
Obtain the Air Element.
Rip out 10 Rocketeer hearts.
Gib 20 enemies from close range with a shotgun.
Frag a total of 100 players.
Kill at least 5 headless kamikazes in one explosion.
Start the car.
Kill 3 enemies in one sprint with the Sledgehammer.
Rip Scrapjack's head off.
Perform all possible finishing moves in the game.
Power up the Timelock.
Kill a Witch-Bride of Achriman.
Kill 5 Cave Demons while they're in air.
Kill an enemy using the Mutilator.
Solve the riddle of the Sphynx.
Defeat the spaceship.
Break 5 Arachnoid necks.
Rip 10 Juvenile spiders apart.
Secure the bird.
Kill the kicked enemy while it is still in the air.
Tear off 10 Kleer heads.
Remove 10 Gnaar eyes.
Kill an enemy with a gib torn from another enemy.
Squash 10 Hatchling spiders.
Rescue professor Stein. So to say.
Decipher an Egyptian text.
Complete the Medieval episode in single player or cooperative.
Kill 100 enemies with Serious Damage active.
Kill 150 Enemies with the Rocket Launcher.
Complete the Persia episode in single player or cooperative.
Kill 200 enemies with the Laser gun.
Find at least 30 secrets in single player.
Kill 250 Enemies with a shotgun.
Kill 100 Kleers with the Cannon.
Pierce at least 10 enemies with a single cannonball.
Kill 50 Cucurbitos.
Burn 100 enemies to death.
Kill 20 Harpies with the Sniper rifle.
Complete the South America episode in single player or cooperative.
Kill 300 Enemies with the Minigun.
Kill 20 enemies with the Minigun without releasing the trigger.
Kill 100 Enemies with the Cannon.
Complete any level in co-op.
Find a secret under water.
Win a versus match.
Defeat the Lava Golem boss on Alley of the Sphinxes.
Trigger Ugh-Zan's regeneration on The Great Pyramid.
Pull out a single Colt and immediately deliver a killing shot.
Leap into the unknown on Luxor.
Complete any level in single player.
Complete the Metropolis level in single player on unmodified serious difficulty.
Complete a level in co-op with blood option set to hippy.
Destroy an enemy cannon with your own cannon.
Kill 10 enemies with the Chainsaw without releasing the trigger.
Kill at least 30 enemies with a single Serious Bomb.
Earn a gold medal on any level in cooperative Survival.
Earn a gold medal on any level in single player Survival.
Finish the Legend of the Beast campaign in single player or cooperative.
Smash 20 Kleers with the Sledgehammer.
Find Sam's classic outfit.
Awake the Guardian of Time.
Break 10 Soldier necks.
Blow a Major Biomechanoid into pieces.
Use the Mutilator to surf after a Werebull.
Kill at least 3 enemies in one spinning Sledgehammer attack.
Complete the Jewel of The Nile single player campaign.
Complete TFE, TSE and BFE single player campaigns.
Complete TFE, TSE and BFE single player campaigns on unmodified serious difficulty.
Complete TFE, TSE and BFE single player campaigns in the estimated time on each level.
Complete TFE, TSE and BFE campaigns in co-op on unmodified serious difficulty.