The Budget Explorer is here, with budget data from FY 2013. It is no longer annually updated.
There are many other fine budget simulations on the Web:
When I started this site in 1996, I knew of only two budget simulations on the Web. Java applet technology was new at that time, and it performed admirably on this large data set.
Now, changes in technology have forced a decision whether to rewrite this site. However, there is no longer a need, because so many other people are doing such fine work. These newer simulations are spreading the word that our country's policies are unsustainable.
For his expertise in Web education, I am grateful to Tom March of ozline.com, and to the many other folks who helped me improve this site. To have my work used in schools and colleges, and to hear from appreciative educators and students, has been a most wonderful and rewarding experience.
THANK YOU ALL!