Because of high volatility of bitcoin, minimal bet( and, consequently, bet increment ) in games becoming a problem.
Some games should have minimal bet value. For example roulette, where bet increments wired to standard chips value, or other games which doesn't allow dust bettings because of limitations commission by bitcoin network.
We make a new Bitcoin Game, where bet increments was nominated in mBTC. Due to bitcoin rating changes, today it's too much. While we build game, bitcoin grows 5 times. We should rewrite some sensitive game parts.
We decided to use "internal dollar" $BTC as a ingame currency. All deposit/withdrawal functions are still performed in bitcoins, but bets in game are nominated in $BTC, which is approximately equal to one USD in bitcoins. It's related only bets value, not deposit or withdrawal values. User can't earn or lose on ratings changes. Ratings of bitcoin renewed on daily basis and value of $BTC changing when bitcoin stock ratings changed more then 10%. All the internal operations of Game are still made in bitcoins.
Bitcoin Ratings affect only display of current game balance, just because we think balance and bet should be nominated in same units.
Bitcoin Deposit stays intact.
We ask all bitcoin gamblers and game owners share their thoughts on this problem. May be you have more rational and comfortable solution?