For players that have corrupted or missing BlackCipher file, please re-download the BlackCipher file by following the steps below.
1. Download the BlackCipher by clicking the button above.
2. Remove existing BlackCipher folder. For most players, this folder is located in C:\Nexon\MapleStory
- For most Steam players, this folder is located in C:\Program Files (x86)\Steam\steamapps\common\MapleStory
3. Move the downloaded BlackCipher folder into the folder where the game is installed.