Do they have poker rooms on this site?
No they dont have it but who knows if it is something that listed on their to do list?
I doubt it though since poker (pvp) is not really popular in crypto gambling market.
However those multipliers are huge numbers, winning with x1000? That is insane, it would be profitable (most probably) just to win that alone, but getting a prize on top of that? Forget about it, you are going to make a huge profit for sure.
x1,000 on slot games is not that rare, you can ask those participants or check the contest thread since the first round.
There are many 1000x or even more hit by those participants.
Hitting x1,000 is not a guarantee of profit as you may hit it but the profit is still less than what you have lost while chasing it.