Newer TI-84 firmware (5.5 or higher) sometimes blocks assembly-based games. You may need a "jailbreak" program like Artifice to run them.

One of the oldest and largest archives for all TI models.

If the game isn't working, check these three common hurdles:

Games for calculators are created by hobbyist programmers and hosted on community archives. You won’t find these on official app stores.