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