Here is the full list of all 77 Dead Age achievements.
Survivor Terence
Survived until day 33.
Defeat 10 undead scavengers.
Defeate 10 undead punks.
Defeat 10 infected patients.
Defeat 3 undead scavengers.
Defeate 3 undead punks.
Defeat 10 undead soldiers.
Rescue 10 civilians.
Sharon reaches camp alive.
Defeat 10 undead civilians.
Defeat 3 infected patients.
Mason reaches camp alive.
Defeat 3 bosses.
Defeat 10 scavengers.
Defeat 3 undead civilians.
Defeat 3 German Shepherds.
Defeat 3 undead soldiers.
Defeat 10 undead cops.
Defeat 3 soldiers.
Rescue 6 civilians.
Survived until day 20.
Mary reaches camp alive.
Defeat 10 punks.
Defeat 10 undead prisoners.
Buy six objects at the shop.
Survive 10 encounters in which attackers approach in waves.
Rescue 3 civilians.
Defeat 3 undead cops.
Defeat 10 Cheerleader.
Defeat 10 suits.
Defeat 3 undead prisoners.
Lydia reaches camp alive.
Defeat 3 scavengers.
Jennifer reaches camp alive.
Defeat 3 punks.
Defeat 10 Ragers.
Survive for 10 or more days.
Craft six items.
Accept three trade deals made by the hungry family.
Bill reaches camp alive.
Survive 3 encounters in which attackers approach in waves.
Defeat 3 suits.
Defeat 3 Cheerleader.
Buy three things at the shop.
Craft three items.
Jamal reaches camp alive.
Defeat 10 Wolves.
Defeat 3 Ragers.
Craft an item.
Make a purchase at the shop.
Survive for 3 or more days.
Defeat 3 Wolves.
Defeat 10 Bitten Pedestrians.
Liz reaches camp alive.
Defeat 3 Bitten Pedestrians.
Accept six trade offers made by the hungry family.
Turn down three offers made by the hungry family.
Hank reaches camp alive.
James reaches camp alive.
Larissa reaches camp alive.
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 undead cowboys.
Defeat 10 undead cowboys.
Defeat 10 German Shepherds.
Defeat 10 soldiers.
Defeat 3 scientists.
Defeat 10 scientists.