Bitvest

When specifically looking at gambling on roulette, Bitvest easily takes the first spot on the list. They offer provably fair roulette, which is a huge deal compared to the casino roulettes you might know of. Usually, they don’t allow you to check if they cheated or not, but Bitvest does. 

The Bitvest roulette is unique, since they allow split, street and corner bets. We don’t come across that very often, and it’s nice to see.
An additional reason to visit their website is their faucet which you can use for free to try out their site to see for yourself how much you like it.

If you like roulette, Bitvest is for sure the site to go to, however they offer other games as well. They have their own dice (1% house edge, 2.6 BTC max profit), plinko and money wheel. The payouts of both plinko and money wheel can be modified to your own preferences. 

Bitvest roulette:

Investment: YES
Faucet: YES
Provably Fair: YES
Altcoins: YES, ETH, LTC, DOGE & BCH

Dice:
Max win: 2,6 BTC
House edge: 1%