Here is the full list of all 77 Dead Age achievements.
Defeat 10 Bitten Pedestrians.
Larissa reaches camp alive.
Defeat 3 Ragers.
Defeat 3 Wolves.
Make a purchase at the shop.
Craft an item.
Survive for 3 or more days.
Defeat 3 suits.
Jennifer reaches camp alive.
Defeat 3 punks.
Defeat 3 Cheerleader.
Defeat 3 Bitten Pedestrians.
Survive 3 encounters in which attackers approach in waves.
Survive 10 encounters in which attackers approach in waves.
Survive for 10 or more days.
Survived until day 20.
Survived until day 33.
Accept three trade deals made by the hungry family.
Accept six trade offers made by the hungry family.
Turn down three offers made by the hungry family.
Rescue 3 civilians.
Rescue 6 civilians.
Rescue 10 civilians.
Buy three things at the shop.
Buy six objects at the shop.
Craft three items.
Craft six items.
Bill reaches camp alive.
Hank reaches camp alive.
Jamal reaches camp alive.
James reaches camp alive.
Liz reaches camp alive.
Lydia reaches camp alive.
Mary reaches camp alive.
Mason reaches camp alive.
Sharon reaches camp alive.
Survivor Terence
Unlock the early ending on day 20.
Unlock the early ending in the desert.
Unlock the ending in which you fail to reach the bunker.
Unlock the bare minimum success ending.
Complete with game and defeat the punks.
Complete the game and save the world.
Complete the game without falling in love.
Complete the game in love with Jennifer.
Complete the game in love with Larissa.
Complete the game in love with Lydia.
Defeat 10 Ragers.
Defeat 10 Cheerleader.
Defeat 10 Wolves.
Defeat 3 bosses.
Defeat 3 undead cowboys.
Defeat 10 undead cowboys.
Defeat 3 undead prisoners.
Defeat 10 undead prisoners.
Defeat 3 infected patients.
Defeat 10 infected patients.
Defeat 3 scavengers.
Defeat 10 scavengers.
Defeat 3 undead scavengers.
Defeat 10 undead scavengers.
Defeat 3 undead cops.
Defeat 10 undead cops.
Defeat 10 punks.
Defeate 3 undead punks.
Defeate 10 undead punks.
Defeat 3 German Shepherds.
Defeat 10 German Shepherds.
Defeat 10 suits.
Defeat 3 soldiers.
Defeat 10 soldiers.
Defeat 3 undead soldiers.
Defeat 10 undead soldiers.
Defeat 3 scientists.
Defeat 10 scientists.
Defeat 3 undead civilians.
Defeat 10 undead civilians.