Here is the full list of all 77 Dead Age achievements.
Survived until day 20.
Defeat 3 German Shepherds.
Defeat 10 punks.
Make a purchase at the shop.
James reaches camp alive.
Defeat 10 undead prisoners.
Defeat 10 scavengers.
Defeat 3 undead soldiers.
Defeat 3 undead cops.
Survive 10 encounters in which attackers approach in waves.
Defeat 10 Ragers.
Larissa reaches camp alive.
Defeat 3 undead prisoners.
Rescue 3 civilians.
Defeat 10 Wolves.
Survive for 10 or more days.
Defeat 10 Cheerleader.
Craft six items.
Bill reaches camp alive.
Defeat 10 Bitten Pedestrians.
Defeat 10 suits.
Jennifer reaches camp alive.
Defeat 3 punks.
Craft three items.
Defeat 3 Ragers.
Defeat 3 Wolves.
Craft an item.
Survive for 3 or more days.
Defeat 3 scavengers.
Survive 3 encounters in which attackers approach in waves.
Defeat 3 Cheerleader.
Hank reaches camp alive.
Lydia reaches camp alive.
Defeat 3 suits.
Defeat 3 Bitten Pedestrians.
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 6 civilians.
Rescue 10 civilians.
Buy three things at the shop.
Buy six objects at the shop.
Jamal reaches camp alive.
Liz 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 3 bosses.
Defeat 3 undead cowboys.
Defeat 10 undead cowboys.
Defeat 3 infected patients.
Defeat 10 infected patients.
Defeat 3 undead scavengers.
Defeat 10 undead scavengers.
Defeat 10 undead cops.
Defeate 3 undead punks.
Defeate 10 undead punks.
Defeat 10 German Shepherds.
Defeat 3 soldiers.
Defeat 10 soldiers.
Defeat 10 undead soldiers.
Defeat 3 scientists.
Defeat 10 scientists.
Defeat 3 undead civilians.
Defeat 10 undead civilians.