Here is the full list of all 35 Shadow Man Remastered achievements.
Fail to stop Legion from bringing about the apocalypse
Open all Soul Gates
Reach Shadow Level 10
Defeat Legion and stop the apocalypse
Defeat Marco Cruz
Acquire Swim Gad
Find the second Violator
Offer Cadeaux to all life altars
Defeat Milton Pike
Defeat Jack the Ripper
Defeat Victor Batrachian
Defeat Avery Marx
Bestow nightfall to Liveside
Find the Violator
Defeat a True Form
Reach Shadow Level 7
Acquire Walk Gad
Shoot down all helicopters in Gardelle County Jail, Texas.
Acquire Poigne
Find an Accumulator
Find a Retractor
Reach Shadow Level 4
Offer 100 Cadeaux to the Loa
Find a piece of the L'Eclipser
Acquire Touch Gad
Unlock a Secret
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
Defeat the Seraph Queen
Enter the horror again through the hardest of trials.