Yeah, I would also prefer altcoins for gambling. Unfortunately, not too many casinos accept altcoins (at least yet). I found that mBit casino now accepts BCH, LTC, DOGE and Bitcoincasino.us also accepting the same ones and planning on accepting ETH soon. Have read quite detailed reviews here https://bitcoincasinoclub.net/casinos/ and then checked at the casino itself. I imagine more casinos will follow up with altcoins.

I haven't heard about this casino yet, probably because they relatively new, I believe. At least they try to provide customer support here Found some more "reputable" casino reviews here at https://bitcoincasinoclub.net/casinos/ but Sekabet.com is not there yet. Would like to find a good review of Sekabet before I register though