Didn't 3dice change owners and they're now licensed in Curaçao?
Would not place my faith in a license like that..
As far as I understand it they've been licensed in Curaçao forever, which would normally be a clear sign to run for the hills but 3Dice are totally solid.
They were accredited here for years but unfortunately couldn't remain accredited once the regulations changed somewhere and they were considered to be servicing 'grey markets'.
I've been playing at 3Dice since 2012, I've deposited and withdrawn thousands and thousands over that time, played over one million game rounds, never had a single problem of any description, and a good number of the staff are the same now as they were in 2012!
(I took a long break from online slots from around 2014 to 2018, not for any gambling problem reasons, I just got bored, when I started playing again at 3Dice, Enzo himself (3Dice head honcho) opened up a private chat window there to say hello and ask how I was getting on, which was nice. If it weren't for that break I'd be more like two million game rounds there, in fact, I'll ask Anna for my lifetime stats again and see where I'm up to.)
They actually get the lion's share of my play these days, since none of their games are crazy volatile (especially by modern standards), and they love to hit in that sweet spot of 200-500x stake on a regular basis. From memory the best hit I've ever had there is on Arctic Adventure of around 1800x stake, but they can pay more.
I get the 'Shark' achievement (10,000 spins on videoslots in a month) every month, and I've had the 'Whale' achievement (75,000 spins in a month) several times too.
Also their video poker plays perfect strategy on autoplay, and Jacks Or Better is the 'full pay' 99.54% variant, I've hit three Royal Flushes there over the years.
Their slots selection is limited but they do add new games on a reasonably regular basis, I honestly think their slot 'Enchanted Spins' is one of the best games ever made, I can plug away at that thing incessantly.
Oh yes and their autoplayer is a thing of beauty, so highly configurable and consistent across all their games too, which is benefit of them doing everything in house.
One final note, last time I asked for my lifetime stats I crunched all the numbers and across all the games, my lifetime RTP was basically within the margin of error of T-RTP, and that was across 1,000,000+ game rounds.
Now imagine that having cost me 2% more next time anyone says 'You won't notice a reduction of 2% in RTP......'