First kill
ACH_FIRST_KILL60.0%

Achievements and their recorded unlock rates.
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ACH_FIRST_KILLACH_CHAIN_KILLACH_HIGH_TRACEACH_SPEEDRUNACH_KILL_VORTEXACH_KILL_ARCHONACH_KILL_MANTICOREACH_FIRST_BOSSACH_ENDLESS_10ACH_ALL_HULLSACH_GOLDEN_HULLACH_FINAL_BREACHACH_ENDLESS_25ACH_ALL_GOLDENACH_EMP_MULTIACH_FULL_BREACHACH_LEGENDARY_MODACH_STEALTH_KILLACH_RICOCHET_KILLACH_CLEAR_WORLD2ACH_CLEAR_WORLD1