A good one is one called "Excel". You make up numbers and put them in boxes, with the goal of getting "impression" points. The fancier your graphs, the more points you get. You can build up your points to get "promotions". The best feature of this game is that your points can make you IRL money!
Some people find the game boring, but I think that's only because they're not creative enough with making up numbers, and get bogged down in "truth" and "accuracy."