Complete the following achievements to unlock Microsoft Gamerscore points.
| Achievement | How to unlock | Points
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| - Prevent Cthulhu from awakening.
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| - Cross the maze without reassembling the cursed totem.
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| - Reconstruct Mei's drawing.
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| - Open the door without letting the matter spill out.
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| - Using sonar, reveal the invisible tentacles of the citadel's guardian.
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| - Translate the temple inscriptions.
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| - Solve fifteen deductions.
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| - Find all energy upgrades.
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| - Reach the star without killing the guardian.
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| - Restore the seal and destroy the deep one.
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| - Find ten sub-clues by inspecting objects.
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| - Reactivate the PIT station.
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| - Translate the language of the great race of Yith.
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| - Reveal twenty-five different clues using sonar frequencies.
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| - Finish the game without exceeding the corruption threshold.
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| - Unlock a yith mechanism using sonar.
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| - Analyze twenty-five clues.
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| - Find Mei in the Other World.
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| - Escape from the deep one.
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| - Teleport using the Star of Shamash.
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