Rocks gained 1
ACH_ROCKS_GAINED_141.3%

Achievements and their recorded unlock rates.
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ACH_ROCKS_GAINED_1ACH_GAMBLING_1ACH_ROCKS_GAINED_100ACH_ROCKS_GAINED_1KACH_ROCKS_GAINED_100KACH_ROCKS_GAINED_10KACH_ROCKS_GAINED_1M