Draw pictures for other players to guess.
Co-operative word guessing game. Everyone gives a clue, but duplicates are thrown away.
Simple bluffing game of influence and intrigue. (You don't need to be able to lie to play it!)
(5-10) Evil players try to sabotage the good as they undertake quests for the Holy Grail.
(3-4) Compete for the heart of the Princess through deception and betrayal.
Discover who the spy is by asking careful questions.
Alternate drawing a prompt and describing the drawing. (The random noun generator might be useful.)
(Best with 6+, video needed) Guess the same words in progressively harder ways.
Game of supernatural hidden identities.
Get rid of all your cards first (similar to UNO).
(Best with 6+) Give clues to identify the correct words from a grid.
($) All the usual Jackbox games.
($) One player is defusing a bomb, but everyone else has the manual.
(NSFW) A party game for horrible people.
(NSFW) Make your own Cyanide and Happiness comics.