Other blockchains require users to pay a fee for every transaction to restrict spam. Steem doesn't have fees, but a quota depending on the users Steem Power. The the amount of actions you can execute on the steem blockchain is limited by your Steem Power.
Your bandwidth goes down with every action, and recovers over time. It's directly proportional to your Steem Power. Doubling it roughly doubles the amount of games you can play.
My estimate is that it's currently possible to play ~10 games per day per SP, when the account doesn't do much else (posting, voting)
RE: SteemDice daily report 23/08/2017