Here is the full list of all 12 Horde Of Plenty achievements.
Collect 1,000 large coins.
Collect 100 Apples
Collect 100 health potions.
Collect 1,000 hearts.
Slay 10,000 enemies.
Trigger 'SPEED x5' Bonus Multiplier, 25 times.
Complete the game.
Collect 13 Apples in one game.
Collect 5 gold stars in one game.
Trigger 'SPEED x4' Bonus Multiplier, 20 times.
Trigger 'SPEED x3' Bonus Multiplier, 15 times.
Trigger 'SPEED x2' Bonus Multiplier, 10 times.