The project shows how closely the casino experience can be approximated, without the games typically thought to define it, and how profitable such experiments can be. With no hotel on site, the slots operation at Twin River now rivals those at Connecticut's Foxwoods and Mohegan Sun casinos, each of which has 6,000 to 7,000 machines. Twin River poured $212 million into Rhode Island coffers last year, according to the state lottery division, more than Foxwoods sent the Connecticut government. That sum will increase if legislators approve a plan to let the complex stay open 24 hours a day instead of closing at 2 a.m. Some legislators, facing a steep budget deficit, have also proposed that table games be allowed there.