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