What you think about Bitvest and 777Coin? Both casino admin, ‘lightlord’ has received some neutral and negative feedback from some DT members. However, the feedbacks aren't related to scam attempt and I know you are aware of those. But one thing is clear here that it is always hard to reach Bitvest team and get the response. Occasionally we have seen some accusations against them about the ‘empty hot wallet’ issue.

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Have you heard about Paradice.in? They are in the forum for more than two years. Paradice have free faucets as well. They allow the users to claim LTC, ETH, DOGE, DASH, PRDC (their own coin) coin faucets. They also support Bitcoin, but they don't support BTC faucet.