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