Here is the full list of all 40 Party Hard Tycoon achievements.
Finish Green grade party
Finish Blue grade party
Finish Yellow grade party
Finish Red grade party
Finish Velvet grade party
Collect 25 party themes
Collect 50 party themes
Collect all party themes
Hire all Green grade personnel
Hire all Blue grade personnel
Hire all Yellow grade personnel
Hire all Red grade personnel
Hire all Velvet grade personnel
Throw three successful parties in a row
Throw seven successful parties in a row
Reach level 25
Reach level 50
Reach level one hundred
Get 100 likes during one party
Get 250 likes during one party
Get 500 likes during one party
Get 1k likes during one party
After all, you learned what happened to Marena's eye
You have declined Keyf's offers and did a coisa certa
You have accepted all quests from Quinten Bos in one playthrough and failed all of them
You have accepted and completed all quests from Meredith Kinley in one playthrough and were surprised, weren't you?
You have completed every Arcus Poole quest and everythin' criss
You have completed every Marena's quest and almost made her... happy
You have completed every Scott Tyler's quest and still have no idea how to call the man
You have completed every Seth Harris's quest and got the WHEEL spinning
You have competed every tutorial quest, and still Pris weren't impressed
Complete every quest in the feud between Seth Harris and Marena
All Roses of Aho Bay are very impressed by your organizing skills
Complete the Final Party
Aho Bay is now the Party Capital of USA. Thanks to you, partymaker
Aho Bay has lost all it's investment opportunities. But you've gained something totally awesome
You threw the worst party of the month
You threw the most expensive party of the month and completed the challenge quest from Pris McBride
You threw the #MOST #PROFITABLE #PARTYOFTHEMONTH
Your threw the most like-able party of the month and completed the challenge quest from Edward Namhart