How to block communication from another player in Diablo III.

How to report a player who isn't participating in a battleground.

Troubleshooting steps for error "Game Initialization Failed" when launching a game

Diablo III Supported Video Cards 

Other players and non-player characters display "Unknown" instead of their name.

The performance menu in Heroes of the Storm can help you diagnose and troubleshoot performance issues.

クエスト完了報酬であるコンパニオンペット「スターダスト」がもらえるクエストアイテムの情報 鎖つきの襲撃 IV: リックキングの怒り

How to ignore another player in Diablo II (2000)

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

Diablo II System Requirements