Here is the full list of all 43 Card Hog achievements.
Visit 25 shrines
Use various skills 100 times
Defeat three bosses in a single run
Defeat boss: Mole Miner
Defeat 500 enemies
Swap mushroom caps
Collect 1000 coins
Collect 25 food items
Defeat boss: Slimer
Defeat boss: Burns
One goes down, another comes up!
Defeat 250 enemies
Collect 500 coins
Defeat boss: Honk
Defeat boss: Skullington
Hit 3 enemies with a single boomerang
Defeat 100 enemies
Two hogs are better than one
Inspect 50 cards using RMB or SHIFT
Rob 10 graves
Sneeze 3 times in one run
Upgrade an item to max tier
Get 100 item upgrades
Add 50 cards to the deck
Remove 25 cards from the deck
Mind control a pile of manure
Kill a wolf with a cleaver throw
Defeat 25 knights
Go for more challenge 3 times (loops)
Defeat 5 enemies which killed you before
Ride a bull
Defeat Spider Queen
Explore the crashed alien ship
Survive 10 days in zombie mode
Defeat boss: Disco Alien
Unlock 25 items of clothing
Defeat The Final Boss