Here is the full list of all 35 Shadow Man Remastered achievements.
Find the second Violator
Defeat Legion and stop the apocalypse
Fail to stop Legion from bringing about the apocalypse
Defeat Avery Marx
Find the Violator
Shoot down all helicopters in Gardelle County Jail, Texas.
Defeat Marco Cruz
Acquire Swim Gad
Defeat Jack the Ripper
Defeat Milton Pike
Defeat a True Form
Defeat Victor Batrachian
Bestow nightfall to Liveside
Reach Shadow Level 7
Acquire Walk Gad
Find an Accumulator
Find a Retractor
Acquire Poigne
Reach Shadow Level 4
Unlock a Secret
Offer 100 Cadeaux to the Loa
Acquire Touch Gad
Find a piece of the L'Eclipser
Find a Voodoo weapon
Defeat Yort
Find and take a Dark Soul
Open a Soul Gate
Reach Shadow Level 10
Open all Soul Gates
Unlock all Secrets
Offer Cadeaux to all life altars
Save the world without dying
Find every Cadeaux
Defeat the Seraph Queen
Enter the horror again through the hardest of trials.