Achievement | How to unlock
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A Hasty Escape | Finish the game in Normal Mode in under 45 minutes.
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An Easy Escape | Finish the game on Easy Mode.
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Artificial Enhancement | Find all the health upgrades.
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Deep Dweller | Defeat the rock creature in the caverns.
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Escape from Tethys | Finish the game on Normal Mode.
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Final Encounter | Defeat the IRI Assassin for the last time.
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Haywire | Destroy the missile frigate.
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Hostile Waters | Destroy the reef guardians.
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Industrial Sabotage | Encounter the IRI Assassin.
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Locked and Loaded | Find all the ammo upgrades.
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Mysterious Planet | Unlock the high-security gate.
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Rogue Scientist | Put the rogue scientist to rest.
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Tech Expert | Find every upgrade.
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Tethys Explorer | Explore every area on Tethys.
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We Meet Again | Defeat the IRI Assassin for the second time.
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