UI is very confusing and I can't tell what turns are, but I won by clicking buttons without any apparent resistance.
I'd say what makes gambling fun are the stakes, you need to feel like you're actually betting and risking something, be it money or your life, so maybe empathize those aspects better instead of giving you infinite use items. Having an actual opponent you can see would be a big plus too, right now it just feels like I'm trying to tickle myself since the enemy doesn't really seem to do anything other than rolling the dice, which I could do myself.
