Ferinsy (#30206) & others asking for the laws/why other games are not banned.
I'm a nerd & play Naruto Blazing, which is a Bandai/NAMCO game of course & remembered that for Begium specifically the purchase of in-game currency with real money was banned & removed some years ago, exactly because it falls under the gambling laws there.
It was the first country afaik, but I think it didn't stay the only one.
It's exactly the same as here btw - gacha for one character or either 10 at a time.
I could dig up a screenshot from the ingame announcement:
https://i.redd.it/mqek38p1jbn11.jpg