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