If game is not running
1. Please download all Microsoft patches, and Windows drivers.
2. Please check if there is not Webzen MuOnline client on your pc, if yes, then first uninstall Webzen via Control Panel.
After that, redownload MuPlanet and try to run.
If you still have problems, please contact us via form
3. Try to edit resolution, open MuPlanetLauncher, click on settings buttons, and choose correct resolution, try windowed mode, after that click safe button and launch game.
4. Try to install game on Desktop.
5. Add to you antivirus exludes(Allow) list C:\Program Files (x86)\MuPlanet or whatever clients is installed, if doesnt help, uninstall antivirus.