The Tiberian Sun Client is a complete, stand-alone Tiberian Sun package for both players and modders. It fixes all known (fixable) bugs in Tiberian Sun and offers a ton of new functionality, including a new easier-to-mod file structure.

This is the full version of Dawn of the Tiberium Age v11.2: all files necessary to play are included, so you also don't need to have the original game installed.