The narwhal prototype is DEAD, so even if you find it it won't be playable (the server functions and database tables no longer exist! ).
The game as we currently envision it is VERY different from the prototype, and will likely change a lot more by the time we start development. So we'll keep it secret

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We won't start that project for a while. It's the next big thing we plan to do, but we want to do a few small projects to recover from Crashlands.