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