You can know pre-order the game knowing when it comes out, Oct 20th.
"The Jackbox Party Pack 9 has five fun-filled party games: the trivia
bluff-off Fibbage 4, the team sorting test Quixort, the magical joke
auction Junktopia, the silly guessfest Nonsensory and the salacious
reality TV game Roomerang. The newest pack features all the same
settings and features as recent packs, plus new features like the host’s
ability to kick players from the lobby and during the game and the
players can connect to games via QR codes that appear on the screen in
the lobby.
To ensure you don’t miss the fun, pre-order The Jackbox Party Pack 9 Steam codes for 10% off through the Jackbox Games’ official shop or in the Steam store. As for the other platform codes, they will be available on release day on the Party Pack 9 page."
Can't wait to play with friends over Halloween hangouts online.