Complete the indicated task to unlock the achievement.

Achievement	How to unlock
At least I have friends!	Play with at least 1 player.
Basic defense	Build your first tower.
Capitalist	Build 2 mines.
Closing the breach	Close a rift.
Demon Killer	Kill 5410 enemies.
Getting hard...	Win in hard.
Gift from the sky	Collect a chest.
Hero of Delum	Win in impossible.
Hero of Heroes	Save a hero.
Heroes never die!	Save 54 heroes.
I survived hell	Win in hell.
Magic? Meh	Win a game without building any elemental tower.
Marathon	Win 54 games.
My first adventure	Win in normal.
Never enough towers	Build 54 towers.
Protector of Delum	Close 15 rifts.
Survivor of Delum	Survive 15 minutes.
There is glory in death	Die while closing a rift (Secret)
This is Art	Build 1337 walls.
Treasure for everyone!	Share a chest with at least 1 other player.
Wealth for Heroes	Collect 20 chests.
Work together!	Close a rift with at least 1 other player.