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