I am not looking to build a casino, I know that costs a lot of money. I want a simple website like freebitco.in in the start or like faucet crypto but with a dice game incorporated.
FreeBitco.in is a bitcoin casino. And, with all of its features, I wouldn't call it a simple website.
As you said, you want to enable users to withdraw in other currencies as well. I would warn you, though, that this may add an extra level of complexity since you will need to incorporate various blockchains and APIs if you want to automate everything.