Gaming machines are highly regulated, almost like medical devices.
There are seals on the hardware, any modification must be approved, you must certify that the payout is the expected one, ...
There are seals on the hardware, any modification must be approved, you must certify that the payout is the expected one, ...
Gambling however, you constantly have government auditors and the tax office crawling up your literal arse to make sure you don't cheat the gamblers, or worse, the government out of their money. And in some cases, add the mob or other criminals on top who also want their cut.
For components in the path of money flow (payment processors, RNGs, hosting, etc.), it's similar.