A gaming system for conducting a wagering game allows players, casino operators, and/or gaming machine manufacturers to selectively combine base games and bonus games. This modular approach allows players, casino operators, and/or gaming machine manufacturers to mix and match base games and bonus games as needed. In some embodiments, players, casino operators, and/or gaming machine manufacturers may also select different game features to employ in the bonus and/or base games. Such an arrangement allows players, casino operators, and/or gaming machine manufacturers to configure each base game and/or bonus game according to their preferences.