Nadeko serves a quadruple purpose as a utility bot, Music bot, currency bot and a gaming bot, but for the sole purpose of this thread, I'll focus on the games aspect of it.
Basically Nadeko has a bunch of really fun discord games to play, such as Hangman, Trivia, Tic Tac Toe, Speedtyping, and Acrophobia.
More information can be found on here.
https://nadekobot.me