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.
Put 50 enemies on spikes
Complete 'Intestinal Inspector'
Obtain all upgrades
Complete 'Midnight Snack'
Complete 'The Fast and the Furry'
Perform Finisher 100 times
Kill 100 enemies with Gore weapons
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.
Complete 'Egg Express'
Set 25 enemies on fire
Fully upgrade the katana
Complete 'Walking on Eggshells'
Kill 150 enemies with environmental hazards
Obtain "Blade of Hattori" Gore Tool from Hattori.
Complete 'That Damn Dam'
Electrocute 50 enemies without Motoko's help
Obtain "Swarm Launcher" Gore Tool from Slinky Jakku.
Fully upgrade one character skill branch
Fully upgrade a ranged weapon
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'
Freeze 75 enemies
Kill 100 enemies with the katana
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.