Warfront Expansion Event
The Warfront Expansion Event took place from 13 April to 15 May 2021 to celebrate the release of the warfront expansion. Players who were in the top 50 of the campaign stars server leaderboard at the end of the event got the following rewards:
| Rank | Expedition tokens | Blueprints | Pickaxes | Jewel chests |
|---|---|---|---|---|
| 1 |  150,000 |
 30,000 |
 300 |
 30
|
| 2 | 120,000 |
24,000 |
240 |
20
|
| 3 | 100,000 |
20,000 |
200 |
15
|
| 4–10 | 70,000 |
14,000 |
140 |
10
|
| 11–25 | 50,000 |
10,000 |
100 |
5
|
| 26–50 | 35,000 |
7,000 |
70 |
3
|
The type of jewel chests received depended on the number of campaign stars of the player at the end of the event:
| Campaign stars | Chest type |
|---|---|
 1–99 |
 Golden chests
|
| 100–144 |
 Diamond chests
|
| 145– |
 Opal Chests
|
If two or more players had the same number of campaign stars at the end of the event, they all got the rewards of the highest ranked player. The event rewards were distributed via in-game mail after the end of the event.