You have completed any level on very hard difficulty.

Destroy 20 mammoth tanks

Unlock two skills

Equip full set of same type of gear

Get a piece of legendary gear

Reach level 10

Enhance any item

Control all the neutral turrets at the same time

Destroy 3 enemies at the same time by using your destruction skill

Destroy 25 enemy tanks

Destroy an enemy by using Reflective armor

Destroy 50 enemy tanks

Destroy 100 enemy tanks

Destroy 50 enemy turrets

Destroy 25 enemy turrets

Destroy 100 enemy turrets

Complete mission 5 under 3 minutes on normal or higher difficulty

Collect 10 Adamantium

Enemy turret destroyed by enemy's own tank or turret

Harm 3 or more enemies at once by your destruction skill

Harm 7 or more enemies at once by your destruction skill

Harm 5 or more enemies at once by your destruction skill

Rebuild a turret

When you’re destroyed by your own tank or turret

Have 10 allied tanks in a map at the same time

Repair yourself to full health in the base

Destroy all enemy’s base turrets

Evade 20 times in one battle

Complete tutorial

Enhance a legendary gear to +10

Finish any mission on Legendary difficulty.

Don't let any of your base turrets get destroyed in a battle

Complete any mission on Legendary difficulty without dying.

Finish 10 missions on Legendary difficulty with maximum score.

Unlock a first Legendary difficulty option.

Complete any mission on Legendary difficulty using only a single tank.