| Achievement | How to unlock
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|---|
| A Bit of a Challenge | Complete all challenge chapters
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| All on Offense | Completed story chapter 8 on normal difficulty or harder without building a repair station
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| Arcadeologist | Reach wave 25 in Arcade mode
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| Battle Hardened | Complete all story chapters on Hard difficulty
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| Battle Hardened Hero | Get hero medals from all story chapters on Hard difficulty
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| Bring Them! | Reach wave 3 in Arcade mode
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| Elite Defender | Achieve a total score of 10 000 000 or more
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| First Victory | Complete the first level.
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| Gorg Buff | Check the credits
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| Hard Measures | Complete all challenge chapters on Hard difficulty
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| Little Extra | Finish a level on normal difficulty with 3 x the amount of money needed for the investor medal
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| Looks & Brains | Meet Sereia.
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| Master of the Universe | Reach wave 50 in Arcade mode
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| Mind the Black Hole | Deploy the Black Hole for the first time.
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| More Merciless than Ming | Complete all challenge chapters on Unstoppable difficulty
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| Mothership Smasher | Defeat a mothership.
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| No More Gorg | Complete the last level.
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| One Satellite Man | Complete a level using only one satellite type.
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| Radiant, Sir! | Meet the Radiant Beem.
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| Skeet Shooting | Defeat 1000 aliens.
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| Soon to be Hero | Achieve hero medals from 5 different story chapters
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| Space Age Hero | Get all the performance medals in one level in a single try.
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| Spare No Expense | Spend more than $15,000 in one level.
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| Stardust | Shoot 10 asteroids
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| The Researcher | Get 8 upgrade tokens.
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| Too Easy! | Achieve hero medal in story chapter 3 on normal difficulty or harder without building a single Blast Cannon
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| Unstoppable | Complete all story chapters on Unstoppable difficulty
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| Unstoppable Hero | Get hero medals from all story chapters on Unstoppable difficulty
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| Unstoppable Victory | Complete any level on unstoppable difficulty.
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