| Achievement | How to unlock
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| - Reach a 50% XP multiplier.
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| - Get 10,000 XP in one mission.
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| - Complete a mission using a single soldier, without taking any damage.
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| - Repair 30 weapons installations.
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| - Win the game with 50% of the population remaining.
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| - Kill 30 enemies with explosive barrels.
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| - Upgrade a soldier to level 20.
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| - Kill 100 enemies with grenades.
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| - Repair 10 weapons installations.
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| - Win the game without losing a soldier.
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| - Win the game with an hour left on the clock.
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| - Complete a ground mission on the last meteor using a single soldier.
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| - Unlock and fully upgrade all weapons.
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| - Kill 150 zompods in ground missions.
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| - Kill 50 zompods in ground missions.
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| - Be chased by an enemy for 30 seconds.
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| - Max out a single stats on a soldier.
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