Ends tomorrow. You can sign up by entering your email here: http://grsgiveaway.com/r/25096496114322620
Is this legit? Apparently, it is! I looked it up: https://bitcointalk.org/index.php?topic=525926.4620
Disclaimer: I want to be fully transparent that this entry is tied to my entry a well, and going through that link gives me extra entries. It doesn't affect you at all, I just get more for sharing. If you don't feel comfortable giving me the extra entries you can just go directly to grsgiveaway.com. But please give me the extra entries :)
More Information
Main Site http://www.groestlcoin.org/
Current Value https://coinmarketcap.com/currencies/groestlcoin/