Rune Drops
Runes drop only from boss encounters of level 40 and higher: each cleared one has a 2% chance to drop a rune, 1.5% on mini-boss stages. Only runes the current hero's class can use drop.
Rune types
| Rune | Share of the runes |
|---|---|
| Attribute rune | 56.28%, 56% on Inferno |
| Ability rune | 43.72%, 43.5% on Inferno |
| Set Rune | 0.5%, Inferno only |
The Inferno shares are before the loot bonus: the Set Rune weight (0.5 against 56 for attribute runes and 43.5 for ability runes) is multiplied by the stage's loot bonus and by (1 + 0.2 x Item Find).
Drop chances are the game's rules for offline characters; the game server decides the loot of online characters.