They have faucets. You can use it to try out your dice strategies.
And also Stake, they have faucets that resets every day so you can even won without spending some bucks.
A notable mention is Stake because you could play many games with a single account.
Indeed, the recent update is seriously the best they did, so far.
Though I just seldomly gamble, but my first place to gamble and made some fun is Stake.