Full list of all 38 It's Quiz Time achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
A clue was removed during Describe It! after someone calls 'Shenanigans!'
The same player correctly predicted that everyone would answer correctly during Trust or Bust
Played on October 31st
Completed 10 games
A player correctly guessed every clue for a subject in Describe It!
All players answered every question correctly during the Starter Round
A team of two or more players beat the leader in Showdown
The same player won three games in a row
A player guessed only one clue during Describe It!
Played two back-to-back games with the same players
All players chose the same specialist subject during The Big Finish
Someone called 'Shenanigans!' during Describe It!
The same player was leading at the end of every round and won the game
A new player won the game
A player answered correctly during Trust or Bust when all other players predicted otherwise
A player went from last place after the first round to winning the game
Completed a game
A player correctly answered all specialist subject questions during The Big Finish
A player scored over 9,999 points in a multiplayer game
A player scored over 450 points on a single question in The Big Finish
The leader beat a team of two or more players in Showdown
Played on December 25th
Completed a single player game
Complete 30 games
Complete a game with 8 players
Someone joins mid-game
No-one answers incorrectly during a round of Connections
The same player answers every question correctly during All in Order
The same player answers every question incorrectly during All in Order
No-one answers correctly during a Trust or Bust
The same player predicts everyone will answer incorrectly during Trust or Bust
Everyone answers correctly in Best Friends Forever, apart from the best friend
Best friend fails to correctly predict player's answer in Best Friends Forever
The same player is chosen as the best friend by all players in a round of Best Friends Forever
The same player works alone against a team of two or more players in Showdown 5 times
All players in a 4-player multiplayer game finish with over 10,000 points
Answer every question in a Solo Score Attack game but end with zero points
Score over 8,000 points in the Solo Score Attack