Systems and methods enable one or more players to play a wagering game having virtual cards. A game system includes a game server configured to connect to at least one mobile gaming device over a network. The game server includes a processor configured to provide a wagering game having virtual cards to a player using the gaming device. Each wagering game is played by players at a virtual table who are dealt virtual cards to form a hand, and the hand satisfying a winning criterion is determined to be a winning hand. The game system also includes a database that may be implemented as a non-relational database configured to be connected to the game server. The database is configured to store a state of the hands of each table as a plurality of document-oriented datasets. The mobile gaming device may automatically re-authenticate to the game server after a disconnection.