See my review of Spore (main game) for the full review. Other than that, the Creepy and Cute Parts Pack (C&C going forward) adds over 100 new parts for your creatures, buildings, and vehicles, including your soaceship in the space stage. Is it worth it, though? Well, if you want more variety than the already vast offerings of the original Spore, than this might be for you. In my opinion though, wait until it goes on sale as a bundle with either Spore and C&C, or if you own the original, wait until the dlc goes on sale. As of writing this, Spore and C&C are on sale as a bundle for $30, and the C&C's normal price is $20. In this case it is not worth it in my opinion, wait on a better sale. Don't get me wrong, Spore and C&C are wicked fun, but all this adds is another level of customization, and as previously stated, there is already an incredible amount built into Spore itself.