Each installment contains five games that are designed to be played in groups of varying sizes, including in conjunction with streaming services like Twitch which provide means for audiences to participate.
[1] Subsequent Jackbox Party Packs have included improvements of existing games, support for more players including the addition of audience participation through the same connectivity approach, better support for content management for streams (as to remove offensive terms in responses, for example), and the ability to create custom games.
[6] Jackbox Games improved server capacity and streaming service usability, and internationalized a standalone version of Quiplash 2 InterLASHional for French, German, Italian, and Spanish languages.
All players – whether local or remote – use either web-enabled devices, including personal computers and mobile or tablet devices, to enter a provided "room code" at Jackbox's dedicated servers to enter the game, or can use a Twitch extension controlled by the streamer to let viewers play directly via the Twitch viewer.
The Xbox 360 version was released on November 3, 2015, alongside retail editions for these console platforms published by Telltale Games.
Each round starts with each player individually being given a playful phrase and a drawing canvas on their local device.
The game challenges up to 100 players to correctly guess if presented trivia statements are true or not, "swatting" those that are false.
As compared to its predecessor, Fibbage 2 introduces new sets of questions and the ability for the audience to vote on their favorite answers.
In the final round, "The Last Lash," all players respond to the same prompt, and vote three times for the best answers of those presented.
The Jackbox Party Pack 3 was released during the week of October 18, 2016, for Microsoft Windows, macOS, PlayStation 4, Xbox One, certain Android devices, and Apple TV.
Trivia Murder Party is for 1–8 players and has a lighthearted theme of a horror thriller (similar to the Saw franchise).
The Jackbox Party Pack 4 was released during the week of October 17, 2017, for Microsoft Windows, macOS, PlayStation 4, Xbox One, Nintendo Switch, various Android devices, and Apple TV.
The game includes new interactivity with the audience by letting them add their own lies to the selection and new "Final Fibbage" facts with two missing words or phrases instead of one.
The final round has all players given a title and a start of a doodle and they have to draw the features the game requested.
In addition to new questions, it includes new "Killing Floor" mini-games (including Quiplash), special items which can help or hinder their ability to survive, and a barrier in the endgame's exit, where players have to answer a question correctly before they can escape (the leading player now sees the third answer at the barrier).
Each round, one player determines an activity on the ship (such as drawing or writing a response to a question) and selects a number of the other crew to participate.
When the selfishness meter is full, it creates a family emergency (e.g. a flooded basement, a burning kitchen or a power outage), lowering the total score bar and making it harder to successfully finish a single day.
Players start by creating their own champions and challengers via a drawing interface with unusual monikers and skills, similar to Tee K.O.
Then, one person, as a presenter, is shown a series of text and picture slides which they are seeing for the first time, and has to use their own voice to talk through these to impress the audience, which votes with their reactions.
The game's style is very similar to Charades, where players have to pick a place, story, thing, or person to describe using sentences.
Points are awarded to the presenter and whoever correctly guesses what word they chose, as well as those who contributed a helpful hint.
It contains three previously released games, Quiplash 3, Tee K.O, and Trivia Murder Party 2, that are all updated to include new features, such as moderation and subtitles.
Furthermore, additional language translations, including French, German, Italian, and Spanish (European and American), were added.
In "TimeFix", players are shown two historical events that have been "altered" and need to select the right response to fix the mess.
Occasionally during the second and third rounds, an alarm will go off indicating that either an impostor has run loose or a location has been altered, and players have to find the correct answer as another opportunity to lower their scores.
After typing is over, a text-to-speech voice reads out the entire message and the non-typing players vote on what words they like the most.
After a song is selected, players then choose an instrument, each having their own melody group and difficulty level.
[45] Hypnotorious is for 4–8 players and is a social deduction game taking place in a stage theater show.
[46] The Jackbox Megapicker is a free piece of software released on Steam on July 29, 2024, which allows users to launch any of the individual games from the Party Packs owned by the user without having to launch the pack itself, and provides search features and news from Jackbox Games.
Jackbox stated that their audience had been requesting games designed around mature jokes and interactions for some time.