As a comprehensible input teacher (Teaching with CI), I like to use EVERY opportunity to use the target language and to provide CI. When we play games in class, I take the opportunity to provide more CI with the game instructions. Talking about how to play the game and reading about how to play the game allows me to deliver more comprehensible input. And it is compelling because my students want to know how to play the game.
Every time we play a game in class, I always show a brief slideshow of the game instructions. I talk about the game, we read the text, and I do some basic comprehension questions. I treat it like any reading material and also try to add some personalized questions. I do this every time that we play the game (repeated exposure to language). Here are some slideshows that I use before playing these games. Feel free to copy and edit for your usage.