| Achievement | How to unlock
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|---|
| A healthy mind in a healthy body | Finish the level at the Hibernian Games.
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| All together! | Get a gold health medal in a camp in multiplayer.
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| By Toutatis! | Get all the gold game medals.
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| Decisive pass | Unknown.
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| Elementary, my dear Obelix | Finish the level in Drogheda.
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| Fantastic feast | Revive an ally by throwing them food.
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| Fill your pockets! | Get all the specific gold medals.
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| Fortune favors the brave | Unknown.
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| Gloria Victis! | Beat twelve Romans in a single ultimate attack.
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| Go home | Finish the level in Tara.
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| Go on Guingamp! | Finish the level in Gaul.
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| Hoarding | Obtain all the collectables.
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| I don't like this | Unknown.
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| Indestructible | Get all the gold medals for health.
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| Just in time | Get all the gold medals for time.
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| Let the music play! | Finish the level at the festival.
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| Living legend | Get all the gold medals for score.
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| Music in the soul | Unknown.
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| My fish is rotten?! | Unknown.
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| Roman formation flying | Unknown.
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| Swift as lightning | Beat a centurion before he calls for help.
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| Taking five, cliffside | Finish the level at the cliffs.
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| Versatile warrior | Unknown.
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| We've had enough | Unknown.
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| Winning return | Defeat a Roman with his own shield.
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