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