A copy of the Assembling the OpenCTD eBook.
A copy of the Assembling the OpenCTD eBook, plus Andrew will publicly thank you for your support via Twitter.
5 digital photos from our various ocean adventures, plus everything above.
Everything above, plus you'll be credited as a supporter in the eBook.
Everything above, plus we'll send you a postcard from our next research trip.
Everything above, plus you'll be listed in the acknowledgements for any scientific paper we publish.
Whoa! You get to name one of the 5 OpenCTD's that we will build and distribute (though we reserve the right to veto anything inappropriate).
Everything you see above (except limited items), plus a handwritten thank-you from the OpenCTD team.
Everything above (except limited items), plus a signed, framed photo of the OpenCTD team on one of the open ocean tests (frame will be handcrafted in Andrew's woodshop).
Your own, personal, OpenCTD, built to your specifications (within reason). Plus, everything above (except limited items).