Asteroid1
ACH_ASTEROID165.6%

Achievements and their recorded unlock rates.
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ACH_ASTEROID1ACH_ASTEROID2ACH_TEN_KACH_ROGUE_1ACH_ASTEROID3ACH_ROGUE_2ACH_UFO_1ACH_COOPACH_PRACTICEACH_UFO_2ACH_THIRTY_KACH_TWENTY_KACH_ROGUE_3ACH_UFO_3