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