I haven't played FortuneJack since last year but I am ready to play again here, I remember playing dice game here. Right now I see that you still have the dice game and its provably fair but it is now from third party? or was it still your own dice game from before?
You can see the gambling provider below of the games, of course it's from third party e.g. Orbital for classic games. The house edge is only 1% like the other casinos, so using third party isn't have any big difference with own casino games. Some casinos even charge 1.5% or 2% house edge for dice games.
Anyway Fortunejack is really have many promotions on their twitter now, the recent promotion is guessing the first goal scorer between Croatia vs Morocco match
https://twitter.com/FortuneJackCOM/status/1603727214188662785