| Achievement | How to unlock
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|---|
| 1UP! | Get a 1UP
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| Archaeology | Complete Chapter 2 (Secret)
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| Black Moonrise | Complete Chapter 2 B-Side (Secret)
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| Breathe | Complete Chapter 4 (Secret)
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| Celeste | Climb Celeste Mountain
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| Center of the Earth | Complete Chapter 6 B-Side (Secret)
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| Checking Out | Complete Chapter 3 (Secret)
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| Eye of the Storm | Collect the Crystal Heart in Chapter 4 (Secret)
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| Forsaken | Complete Chapter 1 (Secret)
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| Gateway | Collect a Cassette (Secret)
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| Golden Feather | Complete Chapter 4 B-Side (Secret)
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| Good Karma | Complete Chapter 3 B-Side (Secret)
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| Heart of the Mountain | Collect the Crystal Heart in Chapter 8 (Secret)
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| Heavy and Frail | Collect the Crystal Heart in Chapter 6 (Secret)
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| Impress Your Friends | Collect 175 Strawberries (Secret)
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| In the Mirror | Complete Chapter 5 (Secret)
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| Mirror Magic | Complete Chapter 5 B-Side (Secret)
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| No More Running | Complete Chapter 7 B-Side (Secret)
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| Pink Sunrise | Collect the Crystal Heart in Chapter 7 (Secret)
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| Pointless Machines | Collect the Crystal Heart in Chapter 1 (Secret)
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| Quiet and Falling | Collect the Crystal Heart in Chapter 5 (Secret)
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| Real Gamer | Complete Celeste for PICO-8 (Secret)
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| Reflection | Complete Chapter 6 (Secret)
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| Resurrections | Collect the Crystal Heart in Chapter 2 (Secret)
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| Say Goodbye | Complete Chapter 8 B-Side (Secret)
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| Scattered and Lost | Collect the Crystal Heart in Chapter 3 (Secret)
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| Sever the Skyline | Complete Chapter 1 B-Side (Secret)
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| Strawberry Badge | Collect 30 Strawberries (Secret)
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| Strawberry Medal | Collect 80 Strawberries (Secret)
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| Thanks For Playing | Complete all C-Sides (Secret)
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