As an online video game tester, your duties are to test video games for different platforms, such as those for a computer, a game console, or mobile device. Your responsibilities are to play games, identify any bugs, and review the general user experience, which includes assessing necessary hardware for the game, such as controllers. You report your findings to project managers or to QA testers, game developers, and engineers, who fix any issues before release. You are responsible for providing feedback on the applications and documenting technical issues.