Am I missing something. It says max win per bet is $20 million.
That's what I see, it is $20 million, and NOT "20 Million COINS". Maybe this message is simply stating the obvious.
$20 Million will be a long time coming at almost every RTG casino, since this would NOT be a network progressive, and would be restricted to their normal withdrawals cap.
Take Club World, with a $3000 per week limit other than for Network wide progressives.
$20,000,000 would take 6667 weeks, or 128 YEARS, to pay out.
I rather suspect though, that the message is a load of BS, since I don't know of ANY game where a player can win $20,000,000 in a single hand or spin, unless some VERY high stakes are allowed.
Joker Poker had 20,000 for a sequential royal, and for the 100 hand version, $1 per single hand would pay 20,000 COINS, since $1 per hand is 5x 20c, and the paytable is in COINS, so the pay on a $1 hand is 20,000 lots of 20c - or $4000. Get a pat sequential on 100 hand, and the pay is $400,000.
I would expect this to be the highest possible non progressive payout at the tables, unless the casino allows more than $100 to be staked per hand on this game.
RTG casinos have now halved the payout for this, but because this is a very unlikely hand, the effect on RTP will be tiny, but certainly in the casino's favour. What it DOES show though, is that RTG casinos are LOWERING the RTP overall, and whilst it is visible in table game paytables, and Video Poker, it is NOT visible in the slots.
Before RTG hid the information, the NEWER slots seemed to be coming out with 94% as their standard setting, rather than 95%, meaning newer slots were being developed with a built in 1% reduction in RTP from the start.
Slots already have a max payout of 50,000x line bet during bonus rounds in any case, so here any such message merely states what has always been the case, but more clearly.