Automated updating of API pages at this location, to reflect patch changes, has ceased from 10.1.7 onwards.

This is no longer a part of the World of Warcraft API. Use GetInstanceInfo and GetDifficultyInfo. It was removed in patch 5.2.0.

Returns the difficulty of the instance the player is currently in.

difficultyIndex = GetInstanceDifficulty()

Returns

difficultyIndex

Number

1 → None

2 → 5 Player & Scenario

3 → 5 Player (Heroic)

4 → 10 Player

5 → 25 Player

6 → 10 Player (Heroic)

7 → 25 Player (Heroic)

8 → Raid Finder

9 → Challenge Mode

10 → 40 Player

Notes

• Returns 1 if the player is not currently in an instance. Also returns 1 when player is in a battleground.

• The return values from GetInstanceInfo() are similar, but different (offset by 1).

• Semi-related functions: GetDungeonDifficultyID() and GetRaidDifficulty().

Patch changes

• Patch 5.2.0 (2013-03-05): Removed. Use GetInstanceInfo and GetDifficultyInfo.
  
• Patch 5.0.4 (2012-08-28): New returns for Raid Finder, Challenge Mode, and 40 Player.
  
• Patch 3.2.0 (2009-08-04): 'Epic' removed from index and replaced with new returns for 10/25 Player normal and Heroic.