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
Perform Finisher 100 times
Put 50 enemies on spikes
Obtain all Gore Tool types
Explode 50 explodables
Set 25 enemies on fire
Freeze 75 enemies
Kill 150 enemies with environmental hazards
Complete 'Wayfarer's Forest'
Complete 'The Fast and the Furry'
Complete 'Midnight Snack'
Complete 'Intestinal Inspector'
Obtain "Double Trouble" Gore Tool from Gassy Obariyon.
Complete 'Walking on Eggshells'
Complete 'Egg Express'
Complete 'Doomsday Device'
Fully upgrade one character skill branch
Obtain "Hungry, Hungry Heart" Gore Tool from Chef Oboru Guruma.
Kill 100 enemies with Gore weapons
Electrocute 50 enemies without Motoko's help
Fully upgrade a ranged weapon
Fully upgrade the katana
Obtain "Blade of Hattori" Gore Tool from Hattori.
Complete 'That Damn Dam'
Obtain "Swarm Launcher" Gore Tool from Slinky Jakku.
Perform Finisher 15 times
Kill 100 enemies with the katana
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'
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.