| Stage | Level | XP | Unlockers | |
|---|---|---|---|---|
 |
Architect of Destruction | 1 | 100 | 29 |
 |
Legendary Siege Engineer | 5 | 500 | 212 |
 |
Master Siege Engineer | 4 | 400 | 7 |
 |
Expert Siege Engineer | 3 | 300 | 21 |
 |
Adept Siege Engineer | 2 | 200 | 39 |
 |
Novice Siege Engineer | 1 | 100 | 266 |