There are 42 achievements worth a total of 1000 points
Complete Exorcism on Hard.
Complete Rivers of Blood on Hard without being incapacitated.
Finish Sumeria - Complete Sumeria on either Easy or Normal.
Complete Flesh on Hard without being incapacitated.
Complete Blood on Hard without being incapacitated.
Complete Blood on Hard.
Complete Skin on Hard without being incapacitated.
Complete Flesh on Hard.
Complete Skin on Hard.
Complete Spiritual Guide on Hard.
Complete The God Seal on Hard.
Complete Temple of Pain on Hard.
Complete Morituri te salutant on Hard without being incapacitated.
Complete The Low Road on Hard.
Finish Rome - Complete Rome on either Easy or Normal.
Complete Decadence on Hard without being incapacitated.
Finish Crusades - Complete Crusades on either Easy or Normal.
Complete Imperium on Hard without being incapacitated.
Complete Tortured Souls on Hard.
Complete Sewers on Hard.
Complete Motley Crew on Hard.
Complete Out of the Frying Pan on Hard.
Master of Ghost – Kill 100 enemies using Ghost Bullet.
Master of BOOM – Disintegrate 100 enemies!
God of Ghost – Kill 250 enemies using Ghost Bullet.
Finish World War 2 - Complete World War 2 on either Easy or Normal.
God of BOOM – Disintegrate 250 enemies!
Complete Rivers of Blood on Hard.
God of Battery – Kill 250 enemies using Melee Attacks.
God of Pop – Pop 250 heads!
Grasshopper of BOOM – Disintegrate 50 enemies!
Master of Battery – Kill 100 enemies using Melee Attacks.
Complete Still With You on Hard.
Finish Al Khali - Complete Al Khali on either Easy or Normal.
Complete The Path of Souls on Hard.
Master of Pop - Pop 100 heads!
Complete The Tomb on Hard.
Complete Man Down on Hard.
Complete Al Khali on Hard.
Grasshopper of Pop – Pop 50 heads!
Grasshopper of Ghost – Kill 50 enemies using Ghost Bullet.
Grasshopper of Battery – Kill 50 enemies using Melee Attacks.