Complete the following tasks to be rewarded with the corresponding achievement.
Earn a gold medal on all missions in the Story mode.
Kill 10,000 aliens.
Build 20 towers in one mission.
Complete the Story mode.
Finish the first 3 missions.
Burn Baby Burn
Build 5 Inferno towers.
Save a core less than 10 seconds away from the map exit.
Use speed up controls for a total of 30 seconds in any one mission.
Death From Above
Fire the orbital laser.
Build all tower types in one mission.
Kill 100 aliens.
Destroy 1000 aliens.
Earn at least one silver medal.
Win with 10,000 resources remaining.
Beat an advanced mission with only Inferno towers.
Kill 1 alien.
Earn at least one Gold medal.
Build 50 towers in one mission.
Build all upgrades of ALL tower types in one mission.
Beat an advanced mission with only level 3 towers and no selling.
Great Ball Of Fire
Build 5 Meteor towers.
Beat an advanced mission with only Gun towers.
Recover a loose core.
Build 5 Concussion towers.
Hey! That's mine!
Kill an alien carrying a power core.
Build 5 Tesla towers.
Activate reconnaissance system.
Sell 10 towers in a single mission.
Build 5 Cannon towers.
Build 5 Gun towers.
Sell 5 towers.
Earn a Gold medal on ALL Challenge modes.
Beat an advanced mission with only level 1 towers.
Win mission with the last core less than 10 seconds away from the map exit.
No towers sold in a single mission.
Not So Fast
Build 5 Temporal towers.
Build 5 Command towers.
Win with 5,000 resources remaining.
Build 5 Laser towers.
Earn a Silver medal on ALL missions in the Story mode.
Build 6 towers within 10 seconds.
Shoot down flying alien carrying a core.
Witness 1 core handed off 10 times within 20 seconds.
Reload an earlier save checkpoint.
Destroy at least one boss alien.
Shoot down a flying alien.
Beat an advanced mission with only Cannon towers.
Survive 100 waves on the Grinder challenge mode.
Win with 1,000 resources remaining.
The Long Road
Alien time until exit exceeds 5 minutes.
The Not-So-Friendly Skies
Build 5 Missile towers.
Build every tower and upgrade.
Beat an advanced mission with zero cores captured.
Gain 10,000 resources from interest in a single mission.
What IS That?
Inspect 10 aliens.
Kill 50,000 aliens.
Yellow Beats Green
Upgrade a tower.
Added by: Guest Dec 31st 1969, ID#