There’s free membership and paid subscriptions with FilePlanet. The first 10 people to find all the Easter Egg answers and send them in an email will win a paid subscription to Fileplanet. Details are at this Easter Egg Contest: http://www.fileplanet.com/fileblog/archives/2009/04/entry_1534.shtml
I think I have some answers so far, but I’m not so sure about Spore and Lineage 2 because I haven’t played them. The one where I answered Half-Life 2: Flipside was kind-of a weird question. I’m estimating that about 2 of you will help me and then try to send in an email. I’m working on the black egg hint right now because I saw them at Halloween.