The site looks nice. I am only not sure what the purpose is of these kind of games. Not typically casino games. It makes it unique, but on the other hand also some confusing to users like me who do not understand anything about the rules/target in the game.
A dice is unique? I guess you really don't know what you're saying and that's what makes you confused. Most of the casinos that you can see in this section have dice game on their platforms so it's not that unique at all. If you want to know how dice game works, it's a random result game and you have to set the gauge as you can see in the graph. If you set 50 and the results showed 50 and lower, you win but the number adjusts the chance of winning and payout too, you can experiment it on your own and see how it changes whenever you move the marker on the line.