Step 1:
Make sure you have a stable internet connection. This is needed so that the generator can successfully add NX to your account.
Step 2:
Open the Xtreme Hackz Nexon NX Generator. You should see an application appear like below:
Step 3:
In the Account Details box, fill in your email address and password of your Nexon account. Then, click validate. The status should show connected like below:
In the NX Generator box, press the desired amount of NX you want to add to your account. Since version 2.0 we have added the extremely powerful option of adding 1 million NX. This option should only be used once a year to avoid getting your account banned! All the other options can be safely used once a week. After that, click the "Generate NX!" button.
Wait for the progress bar to complete.
Step 5:
Once it is completed, a popup box like below should appear. Press OK.
After you done that, start up MapleStory and check your NX balance!
Have fun spending your NX!