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