Reach level 10 in a single game session.

Reach level 20 in a single game session.

Reach level 30 in a single game session.

Reach level 30 in a single game session.

As an engineer wielding a hammer, you've successfully survived over 5 minutes in the game. This marks an important step on your path to becoming a master builder.

Surviving more than 10 minutes showcases your advanced defensive skills as an engineer.

After enduring a 15-minute onslaught of robots, your building prowess and strategic defense have truly established you as a master of engineering feats.

Upgrade the Barrier to max level in a single game session.

Upgrade the Turret to max level in a single game session.

Upgrade the Flamethrower to max level in a single game session.

Upgrade the Spike to max level in a single game session.

Upgrade the Frostblaster to max level in a single game session.

Upgrade the Furnace to max level in a single game session.

Just like every engineer might face unexpected challenges in their first design, your first death has taught you a valuable lesson.

Build the Barrier for the first time.

Build the Turret for the first time.

Build the Flamethrower for the first time.

Build the Spike for the first time.

Build the Frostbite Tower for the first time.

Build the Furnace for the first time.

Swift Binding LV.Max.

Vigilance's Might LV.Max.

Rune of Vitality LV.Max.

Architect's Might LV.Max.

Haste Core LV.Max.

Greedy Grasp LV.Max.

Lifesteal LV.Max.

Successfully build your first structure, symbolizing your first step as an engineer.

Successfully withstand the first five waves of attack, showcasing an initial proof of your defensive strategy and survival skills.

Survive over 25 waves, demonstrating that your perseverance and strategic planning are beginning to pay off.

Having endured 35 waves, your defensive strategies and skills are maturing impressively.

After withstanding 40 waves of enemies, you've forged a legend of steadfast defense.

Survive over 55 waves in fierce combat, proving your unmatched stamina and tactical acumen.

Survive over 20 waves without taking any damage.

Survive over 25 waves without sustaining any damage.