Methods, systems, and computer programs for playing browser based game with alternative controls and interfaces are provided. In one method, a definition of native inputs defined for the game is received. The native inputs are originated in a native device and are capable of causing actions in the game. Further, the method detects an alternate device that does not have all the native inputs. The native inputs are mapped from the native device to alternate inputs from the alternate device. The inputs generated with the alternate device are translated to corresponding native inputs according to the mapping and causing the corresponding actions in the game. In another method, a game area inside a web page is identified for playing the game. The game area is expanded by increasing the size of the game area while decreasing the size of other elements in the web page.