Troubleshooting for game crashes with error "The application encountered an unexpected error"

What to do if Diablo II: Resurrected crashes while playing on console

Some overlay programs can cause Battle.net games to crash.

What to do if you are seeing an error after starting the game

Troubleshooting steps for Diablo II (2000) crash errors

Troubleshooting steps for crash problems

Game crashes or doesn't load after pressing "Play" in the Battle.net app or crashes mid-game

Information regarding crashes accompanied by a Blue Screen

Troubleshooting for Battle.net desktop app crashes.

Information on what to do if you receive an error message saying you are online with your own key in Diablo II (2000).