Ring Games
Ring games, also known as cash games (even though no cash is involved), are the non-tournament form of poker.
In a Ring Game, you choose how much of your Fun Money you want to bring to the table, where it's converted to chips. You then play at the table as long as you want and when you leave your chips are converted back to Fun Money. If you gain chips at the table, then when you leave you'll have gained Fun Money, but if you lose chips at the table, the net effect will be that you lost Fun Money.
Not Supported Yet
Although there's a brief description of Ring Games here and a few mentions of them elsewhere in this Players' Manual, Ring Games are currently unsupported. The server knows a bit—but definitely not all—about Ring Games but the client knows very little.