From Calc-Tech:
The first step is to download TI connect. This program will allow your computer to communicate with your calculator and let you download games (or other programs) onto it. Use the links on this page to download the latest version of TI-84 Plus C Silver Edition drivers. All drivers available for download have been scanned by antivirus program. A USB driver is automatically installed on your computer when you download and install TI Connect software. Now, you can recharge the battery on the TI-84 Plus C when you use the USB computer cable to connect your calculator with a computer. How to Download Games onto TI84 Plus CE and TI84 Plus C Silver Edition! The highest quality games: Mario, Flappy Bird, Zombies, Geometry Dash and more!
What do you need to know about free software?
Ti-84 Plus C Silver Edition Download
The TI-84 C has the same menu structure, navigation, and applications, making the transition from a TI-83/84 seamless. Description The TI-84 Plus C has a full-color, high-resolution, backlit screen making it easy to read. Here are my TI-84 Plus C Silver Edition games in color, which are among the first non-basic games ever released for the TI-84 Plus C Silver Edition. The download archives include the executable files, source code, and documentation.