Here is the full list of all 50 Wolfenstein: The Old Blood (DE) achievements.
Achieve gold medal for this challenge map
Complete all nightmare levels
Complete the prologue nightmare
Complete the nightmare boss level
Collect 64 gold items
Unlock the Carry heavy machinegun perk
Collect all letters
Complete the nightmare in chapter 7
Complete the nightmare in chapter 5
Unlock the Kampfpistole ammo storage upgrade perk
Complete the nightmare in chapter 3
Complete the nightmare in chapter 2
Unlock the Eagle Eye perk
Collect 32 gold items
Unlock the Vampire perk
Choose to save Kessler
Unlock the Quick turn perk
Complete the nightmare in chapter 6
Unlock the Tough Skin perk
Complete game on any difficulty
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Complete game on ÜBER
Unlock the Schockhammer clip upgrade perk
Unlock the Grenade belt perk
Choose to save Annette
Unlock the Reload mash perk
Collect 5 letters
Complete part one
Complete the nightmare in chapter 4
Unlock the Health upgrade III perk
Unlock the Health upgrade II perk
Unlock the Armor upgrade II perk
Unlock the Bombenschuss clip upgrade perk
Escape Castle Wolfenstein
Unlock the Armor upgrade I perk
Collect 16 gold items
Unlock the Ammunition upgrade perk
Collect 8 gold items
Complete the nightmare in chapter 1
Unlock the Health upgrade I perk
Infiltrate Castle Wolfenstein