The contents of Gorgoroth Steel-bound Lootboxes were changed in update 21.3. A few days later they increased the Ashes of Gorgoroth in lootboxes with update 21.3.1. Since then, I have opened 102 lootboxes (so the number of items is close to the percentage). Here's what they contained:
Number |
Ashes |
45 |
120 |
43 |
240 |
6 |
360 |
6 |
600 |
2 |
1200 |
There was an average of 234 Ashes per lootbox.
Number |
Item |
37 |
Empowered Shadow Essences |
8 |
Abyssal Essences |
7 |
Replicas (80 Ashes) |
4 |
Teal jewellery (360 Ashes) |
1 |
Teal armour (360 Ashes) |
14 |
Purple jewellery (100 Ashes) |
16 |
Purple armour (120 Ashes) |
6 |
Pet tomes |
8 |
Housing items |
1 |
Greater Abyssal Weapon Coffer |
The most common items are essences. Note that if you don't want the essence, it can be bartered for a Malleable essence (Abyssal essences give 2), which can be used to craft an Abyssal or Empowered Abyssal essence. The purple jewellery and armour I couldn't use provided additional ashes. All of the teal items were useful.
The best item was the Greater Abyssal Weapon Coffer, which provides you choice of a teal Item Level 337 offhand weapon, bow, or shield.