This article explains the process of speaking to a Game Master (GM).

Use these steps to repair file permission settings for the game folder and all enclosed files/folders.

Basic information for the Level 120 Character Boost feature.

This warning displays if you don't have enough available memory on your system to use your current settings.

ゲーム内やブリザードからの通知の言語設定を変更する方法について。

Troubleshooting steps for resolving lock ups in Diablo III.

Instructions on lowering the maximum frame rate.

Troubleshooting for error 395000.

Information on the Diablo III starter edition. 

Information on Diablo III Account Rollbacks after your account is hacked.