Here is the full list of all 29 Shephy achievements.
100,000 sheep survived.
View the Epilogue for Post Loves.
Clear the Seventh Chapter in Post Loves.
Clear the Sixth Chapter in Post Loves.
Cleared the round using less than or equal to 35 cards.
Cleared in under 3 minutes.
Cleared in under 5 minutes.
Completed the Gallery.
Achieved 7,000 sheep in Challenge mode.
Clear the Challenge mode 10 times.
Achieved 5,000 sheep in Challenge mode.
Achieved 1,000 sheep in Challenge mode.
10,000 sheep survived.
Clear the Challenge mode.
Opponent got to 1,000 sheep in Basic mode.
Clear the Fifth Chapter in Post Loves.
Clear the Fourth Chapter in Post Loves.
More than 10,000 sheep died.
Clear the Third Chapter in Post Loves.
Clear the Second Chapter in Post Loves.
Cleared in under 10 minutes.
Cleared the round using less than or equal to 50 cards.
Clear the Basic mode.
1,000 sheep survived.
Clear the First Chapter in Post Loves.
View the Prologue for Post Loves.
Lost the game in Basic mode.
More than 1 sheep died.
Clear the Tutorial.