Digital games can be considered as an important software development area in our society. This paper proposes the Object Oriented Feature Modeling (OOFM) usage in the digital game domain. It aims to represent and manipulate distinct game features, defined by NESI and GDS models, in a parameterized and hierarchical way. As a result, a Feature-based Environment for Digital Games (FEnDiGa) is provided, a product line platform able to integrate and adapt represented game features in different types of available game engines.