virtualbox.org

I've been trying to run Maplestory on VirtualBox, but VirtualBox is always crashing on me after the game loads. Has anyone been able to successfully play Maplestory on a Windows 7 guest? If there's anything else I should say, please tell me.

All I can do is point you to previous discussions of the same problem, e.g. here. We are not game experts here, so we can't tell you what the game requires. If you can install the guest with 2D and 3D acceleration working then that's the best you can do with VirtualBox. If you continue to have problems the game company would be a better place to ask about its requirements.