First blood
ACH_FIRST_BLOOD88.3%

Achievements and their recorded unlock rates.
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ACH_FIRST_BLOODACH_HELLO_WORLDACH_EFFICIENTACH_RTFMACH_CODE_GOLFACH_TUTORIAL_HALFACH_LOOP_DE_LOOPACH_TUTORIAL_DONEACH_GHOSTBUSTERACH_FIRST_MAPACH_TITANACH_KILLS_1KACH_FUNCTIONSACH_MASTERY_FIRSTACH_BROOD_CLEANACH_FLAWLESSACH_ALL_STARS_ONEACH_ENDLESS_20ACH_HARD_FIRSTACH_SEGFAULTACH_TUTORIAL_PERFECTACH_TIMEOUTACH_SNIPPETSACH_MULTILINGUALACH_KILLS_10KACH_POLYGLOTACH_FIRE_SALEACH_SWITCHACH_HARD_ALLACH_TIER_BEGINNERACH_WORKSHOP_PLAYEDACH_ENDLESS_50ACH_KILLS_100KACH_MASTERY_ALLACH_TIER_INTERMEDIATEACH_MAP_GAUNTLETACH_MAP_MEATGRINDERACH_FULL_ROSTERACH_CAMPAIGN_COMPLETEACH_STACK_DEPTHACH_MAP_ROTATIONACH_MAP_KERNEL_PANICACH_MAP_LABYRINTHACH_TIER_ADVANCEDACH_LEVEL_SAVEDACH_LEVEL_PUBLISHEDACH_HARDCORE_ADVANCEDACH_HARDCORE_FIRST