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