The X-Wing expansion is a nice addition to a fun game. As noted in my other reviews from this line, you can play a few simple and worthwhile games with the core set, but if you want to get the most variety out of the game you'll need some expansions. Because the X-Wing also comes in the core set (which is required to play), it is not 100% necessary to get this expansion set to get the most out of the game. But, there are a few additions, so I'd say it is probably worth getting one of this expansion set for most people (if then, if you want more X-Wings or TIE Fighters I'd just buy extra starter sets to get more bang for your buck).