This section is reserved for resources that help you use your TI-84 Plus calculator. This software can be downloaded from the following page: TI Connect CE Software Download. More information here: TI-84 Plus CE: How to Update the Operating System. Take a look at the guide below if you need some help on getting games on your graphing calculator. Either Celtic III or Omnicalc is required to run this game, but Celtic III is recommended and included.