Here is the full list of all 129 HOARD achievements.
The base game contains 118 achievements, and there is 1 DLC pack containing 11 achievements.
Destroy all castles in a TREASURE level before any royal carriages are produced
Earn a Gold Medal on every multiplayer Co-Op map
Ransom 250 princesses
Defeat 25 giants
Gain tribute status from all towns (more than one) on a level that is fully populated
Get smashed by a giant
Collect 5 wizard gems
Gather more than 100,000 gold on a TREASURE level without upgrading at all
Multiplayer: Win a TREASURE match having never trailed in score
Win 50 competitive multiplayer games
Earn a gold rating on a TREASURE or PRINCESS RUSH level without upgrading FIRE
Earn a gold rating on a TREASURE or PRINCESS RUSH level without upgrading CARRY
Capture your first wizard gem
Take no damage for the first 6 minutes of a HOARD MODE level
Take no damage for the first 5 minutes of a HOARD MODE level
Take no damage for the first 4 minutes of a HOARD MODE level
Take no damage for the first 3 minutes of a HOARD MODE level
Destroy 100 mills
Destroy 100 town centers
Defeat 750 knights
Multiplayer: Win a 4-player TREASURE match after being in last place at the halfway point
Multiplayer: Win a 4-player PRINCESS RUSH match after being in last place at the halfway point
Multiplayer: Earn a gold rating on a co-op level without ever breathing fire
Destroy 250 wagons
Defeat 250 thieves
Upgrade your hoard to level 12
Multiplayer: Win by 5 or more princesses in a PRINCESS RUSH match
Multiplayer: Win a PRINCESS RUSH match having never trailed in ransoms
Multiplayer: Win a match without using any PowerUps
Defeat 250 archers
Destroy 25 enemy tribute carts
Destroy 100 castles
Multiplayer: Steal at least 10,000 gold from enemy hoards during a match
Multiplayer: Steal from every opponent during a 4-player match
Multiplayer: Steal a princess from an enemy's hoard
Multiplayer: Defeat every dragon at least once in a 4-player match
Multiplayer: Defeat an enemy dragon three times without being defeated in return
Defeat two enemy dragons at the same time
Win a TREASURE or PRINCESS RUSH level without ever taking damage
Win a TREASURE level without burning any carts, wagons, or carriages
Win a TREASURE level without defeating any thieves
Win a TREASURE level without defeating any knights or archers
Ransom 100 princesses
Earn a gold rating on a TREASURE or PRINCESS RUSH level without upgrading ARMOR
Earn a gold rating on a TREASURE or PRINCESS RUSH level without upgrading SPEED
Defeat 15 thieves in a single TREASURE or PRINCESS RUSH game
Destroy 250 farmer carts
Collect 48 eggs. Hurry!
Destroy 250 crops
Win a TREASURE level without having any gold stolen from your hoard
Win a TREASURE or PRINCESS RUSH level without ever being defeated
Incinerate 10 thieves who are dressed up like Santa's elves!
Take no damage for the first 2 minutes of a HOARD MODE level
Take no damage for the first 1 minute of a HOARD MODE level
Defeat 25 knights in a single TREASURE or PRINCESS RUSH game
Collect your first tribute cart
Destroy one of your own tribute carts
Gain tribute status with a town
Defeat 250 knights
Defeat 10 giants
Defeat 2 giants in the same game
Multiplayer: Earn a gold rating on a co-op level while scoring the least on the team
Destroy 25 taverns
Multiplayer: Win a co-op level without the score multiplier ever being lost
Destroy 25 wagons
Win 10 competitive multiplayer games
Play 10 multiplayer games
Upgrade ARMOR to maximum
Ransom 10 princesses
Defeat an enemy dragon for the first time
Defeat 25 thieves
Destroy 25 mills
Destroy 25 town centers
Upgrade CARRY to maximum
Defeat 25 archers
Destroy 50 crops
Destroy 25 castles
Burn a princess
Destroy 5 taverns
Multiplayer: Earn a gold rating on a co-op level while scoring the highest on the team
Defeat 25 knights
Destroy 25 farmer carts
Destroy 5 castles
Destroy 5 town centers
Upgrade SPEED to maximum
Destroy your first thief
Ransom your first princess
Destroy your first castle
Destroy 5 mills
Defeat your first giant
Upgrade FIRE to maximum
Win a competitive multiplayer game
Defeat 750 thieves
Defeat 750 archers
Destroy 1000 farmer carts
Destroy 1000 wagons
Destroy 1000 crops
Destroy 100 taverns
Collect 25 wizard gems
Collect 100 wizard gems
Destroy 100 enemy tribute carts
Collect 250 tribute carts
Carry the most amount of gold possible
Earn a gold rating in all single player TREASURE levels
Earn a gold rating in all single player PRINCESS RUSH levels
Earn a gold rating in all single player HOARD levels
Win all single player TREASURE levels at least once
Win all single player PRINCESS RUSH levels at least once
Win a 4-player TREASURE level without defeating any enemy dragons
Defeat 30 archers in a single TREASURE or PRINCESS RUSH game
Win a PRINCESS RUSH game without ever collecting chests of gold
Multiplayer: Don't allow an opponent to ransom any princesses in a 2-player PRINCESS RUSH match
Collect 1000 tribute carts
Win a PRINCESS RUSH game without ever losing a princess during ransom
Achieve profile rank 15: Great Wyrm
Win 100 competitive multiplayer games
Play 100 multiplayer games
Cause 12 groups of fireworks to go off in a HOARD MODE level
Destroy 250 bumper crops
Multiplayer: complete a game with 10 different Steam users
Kill two knights at once using a bomb wagon
Kill a princess using a bomb wagon
Burn down 1000 trees!
Kill a castle using a bomb wagon
Kill a thief using a bomb wagon
Destroy a bell-tower
Destroy a bumper crop
Kill a wizard tower using a bomb wagon
Multiplayer: complete a co-op game on every level