Here is the full list of all 43 Darksiders (EEU/JP) achievements.
Complete the game on EASY
Collect the maximum amount of wrath cores
Collect all the Wrath Powers
Collect all 27 artifacts
Defeating more Angels than Ulthane
Forge the Armageddon Blade
Collect the Tremor Gauntlet
Search 150 chests
Collect the Earthcaller
Gain the Chronomancer Ability
Defeat The Destroyer
Kill 666 Demons
Collect the Mask of Shadows
Defeat The Griever
Shed 3000 gallons of demon blood
Obtain Ruin
Collect The Scythe
Collect the Abyssal Chain
Free Samael from his prison
Defeat Straga
Take out a helicopter with a car during the apocalypse
Meet Ulthane
Defeat Silitha
Defeat Tiamat
Collect the Abyssal Armor Set
Collect the Voidwalker
Kill 150 enemies with items from the environment
Kill 150 Demons from horseback
Kill 5 duskbats without touching the ground
Collect the maximum amount of lifestones
Collect the Crossblade
Collect the Chaos Form Ability
Kill 10 enemies with one Blade Geyser wrath attack
Meet Vulgrim
Ride for 100 miles
Gain the Shadowflight Ability
Unlocked everything
Max out all weapons and unlock all combat moves
Defeat the game on NORMAL
Defeat The Stygian
Collect Mercy
Kill 160 enemies while on the angelic beast
Defeat the game on APOCALYPTIC