Unlockable - Steam Achievements
A Bit of a Challenge - Complete all challenge chapters
All on Offense - Completed story chapter 8 on normal difficulty or harder without building a repair station
Arcadeologist - Reach wave 25 in Arcade mode
Battle Hardened - Complete all story chapters on Hard difficulty
Battle Hardened Hero - Get hero medals from all story chapters on Hard difficulty
Bring Them! - Reach wave 3 in Arcade mode
Elite Defender - Achieve a total score of 10 000 000 or more
First Victory - Complete the first level.
Gorg Buff - Check the credits
Hard Measures - Complete all challenge chapters on Hard difficulty
Little Extra - Finish a level on normal difficulty with 3 x the amount of money needed for the investor medal
Looks & Brains - Meet Sereia.
Master of the Universe - Reach wave 50 in Arcade mode
Mind the Black Hole - Deploy the Black Hole for the first time.
More Merciless than Ming - Complete all challenge chapters on Unstoppable difficulty
Mothership Smasher - Defeat a mothership.
No More Gorg - Complete the last level.
One Satellite Man - Complete a level using only one satellite type.
Radiant, Sir! - Meet the Radiant Beem.
Skeet Shooting - Defeat 1000 aliens.
Soon to be Hero - Achieve hero medals from 5 different story chapters
Space Age Hero - Get all the performance medals in one level in a single try.
Spare No Expense - Spend more than $15,000 in one level.
Stardust - Shoot 10 asteroids
The Researcher - Get 8 upgrade tokens.
Too Easy! - Achieve hero medal in story chapter 3 on normal difficulty or harder without building a single Blast Cannon
Unstoppable - Complete all story chapters on Unstoppable difficulty
Unstoppable Hero - Get hero medals from all story chapters on Unstoppable difficulty
Unstoppable Victory - Complete any level on unstoppable difficulty.
Eve and her comrades land on the surface to reclaim the extinct Earth and cross paths with a survivor named Adam. Eve is then led by Adam to the last surviving city, Xion, where she meets the elder of the town Orcal and is told many stories. In order to serve her mission to save Earth, Eve develops close relationships…
