What Adult Party Games Actually Work Well at Corporate Holiday Events?

Okay I have a bunch of corporate holiday parties planned for several weeks leading up to Christmas. I need to figure out fast what kind of games or activities adults could do because out of like 10 booked, 8 said and you will arrange the activities for the party goers.

So originally I was thinking of doing a bowling like game which I found when I was searching bowling alleys for sale on sites like Amazon and Alibaba. The game is called skittles and consists of a wooden ball and wooden pins. But it seems maybe boring for some people and the inflatable ones which I had thought I would purchase for kids and rent out is not worth the hassle or profit margin.

So now I decided why not just invest in a bunch of adult games that office party goers could play while at the party. So now I want to know from all you people what were some of the best office party games you guys played during holiday parties or otherwise.

It doesn't have to be a game board or a game I purchase, it can be something I can make myself, I am all ears at this point. In fact if I dont buy it it will just save me money, so please please share. I bet there has been some really crazy office parties out there with some fun games that everyone really enjoyed, right? I am sure not everyone gets just crazy drunk or really bored?