$3,000 welcome bonus
Size is not the only thing that matters; an online casino welcome bonus can be as big as a brick-and-mortar casino itself but if the wagering requirements are unattainable, then the code does not do you much good. So, lower wagering requirements garnered a higher score.
With a name like Genesis, you could probably guess the strange cosmos theme running through the casino.
One of the most popular online gambling sites in the UK
100% match up to $1,500 for the casino (same for poker room)