An USA Today article discusses a new game ‘Budget Hero’ which allows players to enact their policy objectives while keeping the government from going broke. The article explains the demonstration:
In a quick demonstration of the game, two college students, one taking typical Republican positions and the other Democratic, showed just how difficult it will be to save the country. The Republican extended the Bush-era tax cuts, cut spending for the arts and humanities and reduced congressional budgets. The Democrat went after a green badge by raising the federal tax on gasoline and ending tax breaks for big oil companies, while also expanding health insurance coverage...Both plans saw the government go broke.
The game is free and available here. Refer to the link above for the full article.