My understanding of scam websites is simple. Those who do not give any withdraws at any time. Otherwise they are legit.
And Luckygames surely fits in the legit category (100%) because I personally have withdrawn a lot more than the amount I ever deposited.
and am still doing it periodically. And I have been on the website for 575 days since registration now.
Well your personal experience might have been good but don't forget that the they also agreed that they scammed someone by rigging results. Still you find it legit? I don't know if you are part of luckygames team or not but still you should talk after taking other incidents into account as well.
https://bitcointalk.org/index.php?topic=1696880.msg20820211#msg20820211