Salvage Rights
Destroy at least one boss alien.
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Field Promotion
Earn at least one silver medal.
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Death From Above
Fire the orbital laser.
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Siege Breaker
Survive 100 waves on the Grinder challenge mode.
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Flawless Victory
Earn at least one gold medal.
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Base Defender
Complete the Story mode.
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Planet Defender
Earn a silver medal on all missions in the Story mode.
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Master Strategist
Earn a gold medal on any 100 missions in The Awakening campaign.
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Exterminator
Destroy 1000 aliens.
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Tower Expert
Build every tower and upgrade.
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Alien Tears
Earn a gold medal on all missions in the Story mode.
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Nail Biter
Win mission with the last core less than 10 seconds away from the map exit.
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Indecisive
Sell 10 towers in a single mission.
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Untouchable
Beat an advanced mission with zero cores captured.
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Close Call
Save a core less than 10 seconds away from the map exit.
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Happy Returns
Recover a loose core.
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