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