You want to know how to play? well here you go.
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First, you start off in darkness, then go right (-->) and down (|).
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Next, you should be swimming through water you can't see. Go down and you should see two portals. go through the green one (The one with the Crystal over), as the orange one you can't get to.
I shall not tell you more until Saturday 27th March.
Keep this link wherever you link for further details:
http://sploder.com/?s=d0011pqf