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.
Obtain all upgrades
Complete 'Intestinal Inspector'
Complete 'Midnight Snack'
Complete 'The Fast and the Furry'
Obtain all Gore Tool types
Obtain "Double Trouble" Gore Tool from Gassy Obariyon.
Complete 'Wayfarer's Forest'
Perform Finisher 100 times
Complete 'Doomsday Device'
Obtain "Hungry, Hungry Heart" Gore Tool from Chef Oboru Guruma.
Put 50 enemies on spikes
Complete 'Egg Express'
Fully upgrade a ranged weapon
Kill 100 enemies with Gore weapons
Fully upgrade one character skill branch
Complete 'Walking on Eggshells'
Kill 150 enemies with environmental hazards
Obtain "Blade of Hattori" Gore Tool from Hattori.
Electrocute 50 enemies without Motoko's help
Freeze 75 enemies
Set 25 enemies on fire
Complete 'That Damn Dam'
Obtain "Swarm Launcher" Gore Tool from Slinky Jakku.
Obtain "Seeking Eye" from Seeking Shokera.
Complete 'Motoko's Thunderdome'
Fully upgrade the katana
Obtain "Penetrator" Gore Tool from Mogura.
Explode 50 explodables
Obtain "Disco Grenade" Gore Tool from Laser Shogun.
Complete 'Way to Motoko'
Kill 100 enemies with the katana
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.