Here is the full list of all 38 Shadow Warrior 3 achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Perform Finisher 100 times
Put 50 enemies on spikes
Set 25 enemies on fire
Kill 150 enemies with environmental hazards
Obtain all upgrades
Complete 'Intestinal Inspector'
Complete 'The Fast and the Furry'
Complete 'Midnight Snack'
Fully upgrade the katana
Fully upgrade one character skill branch
Obtain all Gore Tool types
Obtain "Double Trouble" Gore Tool from Gassy Obariyon.
Kill 100 enemies with Gore weapons
Complete 'Wayfarer's Forest'
Fully upgrade a ranged weapon
Complete 'Doomsday Device'
Obtain "Hungry, Hungry Heart" Gore Tool from Chef Oboru Guruma.
Freeze 75 enemies
Kill 100 enemies with the katana
Complete 'Egg Express'
Electrocute 50 enemies without Motoko's help
Complete 'Walking on Eggshells'
Explode 50 explodables
Obtain "Blade of Hattori" Gore Tool from Hattori.
Complete 'That Damn Dam'
Obtain "Swarm Launcher" Gore Tool from Slinky Jakku.
Obtain "Seeking Eye" from Seeking Shokera.
Complete 'Motoko's Thunderdome'
Obtain "Penetrator" Gore Tool from Mogura.
Obtain "Disco Grenade" Gore Tool from Laser Shogun.
Complete 'Way to Motoko'
Perform Finisher 15 times
Kill 200 enemies
Obtain "Equalizer" Gore Tool from Oni Hanma.
Obtain your first upgrade
Complete 'The Dragon's Back'
Obtain "Brain Tonic" Gore Tool from Shogai.
Obtain "Brain Freeze" Gore Tool from Kugutsu.