Here is the full list of all 20 The Jackbox Party Pack 2 achievements.
All players find the truth on a question
Win a round with two voice Sound Effects
Go an entire game without using any bodily function Sound Effects
Write a Lie that's actually the Truth
Win the game and win the most likes
Get a Quiplash (sweep votes in a 5+-player game)
Play a game with 8 players plus an Audience
Fool every other player with a Lie in a 3+ player game
Enter the same thing as an opponent
Write a quip that Schmitty actually responds to
Write “pork pants” and win a battle with it
Take out three loans and still win the game.
Screw a player and have them actually end up buying that piece of art.
Have an auction go above $4,000.
Play a 6-player game.
Win a round using two bodily function Sound Effects
Successfully file paperwork
Successfully make coffee
Deliver an alien baby
Defuse 10 bombs in The Grind