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