Download the MaplePrime client and start playing.
Choose a download mirror or use the patcher.
Use MediaFire or Google Drive for full client. Use patcher for updates. Make sure you have exemption for both MaplePrime and MapleStory. Launch game with MaplePrime.exe
Note: Windows may show a SmartScreen warning because the patcher is a new unsigned file. Click More info and then Run anyway.
1. Download the zip
2. Extract folder
3. Run the client
4. Register in-game