Full list of all 50 The Darkness achievements worth 1,000 gamerscore. It takes around 25-30 hours to unlock all of the achievements on Xbox 360.
Complete game on hard setting
Collect all the Darkling outfits
Unlock 100 collectables
Take down 6 airplanes.
Unlock 75 collectables
Unlock 50 collectables
Kill 7 enemies within 15 seconds
Someone's waiting by the phone
Help those in need
Find a peaceful solution. At least momentarily
Real guys stick around for their ladies
Kill the workers in the tunnel
Finish a multiplayer match with less than 5 deaths (minimum of 4 players)
Be on the winning side in 250 multiplayer matches
Complete game on normal setting
Devour 300 enemies
Trap 5 enemies within a Black Hole
Unlock 25 collectables
Only for those who are completely in tune with the Darkness
Kill 30 enemies using Darkness Guns
Complete the second part of the game
Kill 20 enemies using Black Hole
Bring down the Chopper
Kill 30 enemies using Demon Arm
Achieve maximum Darkness level
Acquire Black Hole
Acquire all Darkling types
Acquire Darkness Guns
Summon 50 Darklings
Acquire Demon Arm
Complete the first part of the game
Kill 50 enemies using execution moves
Perform a melee kill for the first time
Kill 15 enemies using Creeping Dark
Kill 25 enemies using execution moves
Summon 5 Darklings
Unlock a collectable for the first time
Acquire Creeping Dark
Perform an execution move for the first time
Be on the winning side in 100 multiplayer matches
Take enough damage without dying within a multiplayer match
Capture 50 flags in a CTF match
Capture 20 flags in a CTF match
Capture a flag in a CTF match
Be on the winning side in 50 multiplayer matches
Be on the winning side in 20 multiplayer matches
Claim 20 Killing Streaks in multiplayer
Be on the winning side in 5 multiplayer matches
Be on the winning side in a multiplayer match in any of the multiplayer modes
Kill enough players to achieve a killing streak within a multiplayer match