Entertainment in Rome was varied and everywhere. There were plays in open air theaters. There were festivals, both religious festivals and festivals put on by rich Romans. There were chariot races and gladiatorial contests. There were sports contests. And they were all free.
Romans were also very social. They visited friends, relatives and neighbors. They met in the baths. They might hold a dinner party for friends and important people. If you were rich, you might stay up all night at a party, lit by oil lamps. The poor couldn't afford the oil for the lamps so they usually went to bed when it got dark.