Here is the full list of all 31 Deadlight achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Finish Randall's nightmare
Find Parker in the hockey arena
Push a zombie over a railing
Face someone from Randall's past in the Park
Find the first health expander
Roll to avoid lethal fall damage
Follow the Ratman to his den
Finish Randall's dream
Perform a headshot
Reload the revolver really fast
Get to the military control
Tackle an enemy
Survive a close encounter
Reach the junkyard
Execute an enemy
Find a page of Randall's journal
Perform a combo on an enemy
Tackle a door
Escape from the warehouse
Finish Randall's flashback
Make it to the end
Get 100% of Deadlight
Kill an enemy with a single melee attack
Beat the high score in Raven Thunder's Rock Legend
Beat the high score in Sport Daisy
Beat the high score in Madness Mansion
Get infected by a friend on the leaderboards
Reunite with Stella
Find all of Randall's memories
Find all the IDs
Finish the Nightmare mode