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