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.
Complete 'Intestinal Inspector'
Put 50 enemies on spikes
Obtain all upgrades
Obtain all Gore Tool types
Complete 'Midnight Snack'
Complete 'The Fast and the Furry'
Perform Finisher 100 times
Obtain "Double Trouble" Gore Tool from Gassy Obariyon.
Complete 'Wayfarer's Forest'
Freeze 75 enemies
Kill 150 enemies with environmental hazards
Set 25 enemies on fire
Fully upgrade a ranged weapon
Complete 'Doomsday Device'
Electrocute 50 enemies without Motoko's help
Obtain "Hungry, Hungry Heart" Gore Tool from Chef Oboru Guruma.
Kill 100 enemies with Gore weapons
Complete 'Egg Express'
Fully upgrade one character skill branch
Explode 50 explodables
Complete 'Walking on Eggshells'
Fully upgrade the katana
Kill 100 enemies with the katana
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'
Kill 200 enemies
Perform Finisher 15 times
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.