Spore’s Creature Creator
As a hardcore shooter fan Spore has only slightly turned my head. However, I know from playing multiple MMOs (I had a problem) that creating characters can be one of the most fun aspects of a game. The Spore Creature Creator is a stand alone game(?) that lets you create funny little creatures to later be used in the full version when it drops in September.
If you look around, you can easily find the torrent for the trial version that was leaked recently. I would suggest it, because even though there is limited content in the trial version I was still amazed at how much I could do with this thing. I have created a true abomination of nature.
Even if you aren’t a big fan of these types of games, give this a go. It’ll hold your attention for a lot longer than expected.