"Why not? He went go-karting with us last week."

A genre of game that took off with the release of Mario Party on the Nintendo 64. A party game is a minigame collection where two to four players compete against each other in a boardgame-like environment. This is not a rigid rule though; party games can have board gameplay, but no minigames, and vice-versa (see Minigame Game for more examples of the latter).
Because those games encourage fun over competition, rarely do they require much skill to play, with luck and chance being common factors that influence gameplay in order to ensure a feeling of fairness for everybody involved. Expect gratuitous use of Comeback Mechanics.
The term is also used more loosely to describe games that are really fun to have at a party. This label doesn't have a strict definition, but multiplayer (obviously) and accessibility are two important criteria. Things like Rock Band and Mario Kart fall under this category.
Either way, these are far more common on consoles than on PCs because during the SDTV era, few PCs were equipped to use four controllers and a large monitor.
Examples:
- 1-2-Switch
- 100% Orange Juice!
- Animal Crossing: amiibo Festival
- Anticipation
- Battle Chess
- Beauty and the Beast: A Board Game Adventure
- Bomberman Land
- Boom Blox
- Cartoon Network Block Party
- Chuck E. Cheese's Party Games
- Crash Bash
- Crash Boom Bang!
- The Croods: Prehistoric Party
- Disc Jam
- Disney Universe
- Disney's Party
- Dokapon
- Donkey Konga
- Fall Guys
- Flip Wars
- Fortune Street
- Garfield Lasagna Party
- Getter Love!! Panda Love Unit
- Typing of the Date
- Guilty Party
- Incredible Crisis (Very loosely, though.)
- The Jackbox Party Pack
- Kirby's Dream Buffet
- Mario Party
- Momotaro Dentetsu
- Muppets Party Cruise
- Nickelodeon Party Blast
- Nintendo Land
- Pac-Man Fever
- Party Animals
- Point Blank (1994) is a hybrid of a Party Game and a Minigame Game. The second game on the PlayStation has a Reversi-style game over-arching the minigames.
- From the Rayman series:
- Richman
- Rugrats Scavenger Hunt
- Shrek Super Party
- Snipperclips
- Sonic Shuffle
- SpongeBob SquarePants: Lights, Camera, Pants!
- Super Smash Bros. for Nintendo 3DS and Wii U (the Wii U version's Smash Tour)
- Tamagotchi: Party On!
- Tweety and the Magic Gems
- Viva PiƱata: Party Animals
- WarioWare (in particular, Mega Party Game$, but other installments have included elements of this)
- Wii Party
- You Don't Know Jack