Get your first kill.

Kill 500 enemy units.

Kill 3000 enemy units.

Kill 8000 enemy units.

Kill 100 enemy units using the Meteor Spell.

Freeze 100 units using the Blizzard Spell.

Kill 50 enemy units using the Lightning Spell.

Kill 200 enemy units using the Darkness Spell.

Use Meteor Spell 5 times in a single game.

Use the Lightning Spell 5 times in a single game.

Use the Blizzard Spell 5 times in a single game.

Beat any level without using a Hero Spell.

Beat any level with 1 health remaining.

Beat any level without losing health on IMMORTAL.

Unlock all stars.

Sell 10 towers in one game.

Defeat the Dark Lord.

Destroy the Obsidian Tower.

Destroy the Ushi Tower.

Unlock all towers.

Beat any level without using Archery Towers.

Beat any level without using Elemental Towers.

Beat any level without using Ballista Towers.

Beat any level without using Wizard Towers.

Get your first victory.

Beat Obsidian Forest on Iron mode.

Beat Ushi Desert on Iron mode.

Beat City of Armos on Iron mode.

Beat the game on Iron mode.