Slot isn't giving us many chances to hit. Slot games even has higher house edge compared dice game. The lowest house edge on slot games is 2.xx% while we can have bigger chance to win in dice games which has 1% house edge only.
You started to talk about high multiplier, but why you bring it to comparison of general winning chance between dice and slot?
If you started to talk about general winning chance, of course I agree that dice give better winning chance than dice in general as we can set the multiplier as we wish.
I said slot gives you more chances to get high multiplier as 1 spin can give you various unpredictable multiplier while dice give you only one chance which is the multiplier you set before rolling.
The lowest house edge on slot games is 2.xx% while we can have bigger chance to win in dice games which has 1% house edge only. That's why there is no any slot games offer higher than 98 .5% RTP.
I think you need more references about slot games, it is completely wrong if you say there is no slot games with higher RTP than 98.5%
There are some slots with RTP more than 98.5% like Mega Joker by NetEnt (99%), Ugga Bugga by Playtech (99.07%), Book of 99 by Relax (99%), etc.
Maybe you can hit enough multipler during 500 rolls, but you can also won nothing in during that 500 rolls.
The same applies to dice game but slot has lower chance of losing all balance if we are still talking about chasing high multiplier.
