Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Bayan fitarwa, an sayar da Episode One a duka shagunan sayar da kayayyaki da kuma tsarin rarraba Steam na yanar gizo na Valve, inda aka sayar da shi a farashin ragi. Wasan kuma Electronic Arts ne ya rarraba shi a matsayin sakin kai tsaye kuma a matsayin wani ɓangare na Half-Life 2: Platinum Collection. Yana da samuwa ga pre-load da pre-saya ta hanyar Steam a ranar 1 ga Mayu, 2006, tare da Half-Life Deathmatch: Source da Half-Life 2: Deathmatch nan da nan don wasa a matsayin wani ɓangare na kunshin. Kashi na ɗaya yana samuwa a matsayin ɓangare na kunshin da aka sani da The Orange Box, wanda ya haɗa da Half-Life 2, Kashi na Biyu, Team Fortress 2, da Portal; kuma yana samuwa ga Mac, PC, Xbox 360, da PlayStation 3. Kimanin kwafi miliyan 1.4 na Kashi na Farko an siyar da su a shekara ta 2008. Amsawa ga Kashi na Farko gabaɗaya ya kasance mai kyau, kuma masu bita sun yaba wasan don samun rikitarwa, wasan da ya dace fiye da Half-Life 2. Har ila yau, an yaba wa wasan kwaikwayon wasan, musamman a cikin nau'in Alyx da halayen ta ga ayyukan mai kunnawa da abubuwan da suka faru a wasan. PC Gamer yayi sharhi cewa "yayin da wannan taron na farko bazai zama FPS mai mahimmanci wanda Half-Life 2 yake ba, ba zan iya tunanin kowane mai harbi wanda zai so ya rasa shi ba". A cikin bita, PC Gamer UK ya ba da yabo na musamman ga daidaituwa tsakanin ƙalubalen da aka daidaita da ƙalubalen da aka daidaita a cikin wasan. A Ostiraliya, mujallar PC PowerPlay ta ba wa wasan 10 daga cikin 10. Edge ya yaba da "ƙwarewa" wanda wasan ya sami damar jagorantar idanun mai kunnawa, da ƙarfin Alyx a matsayin abokin tarayya, yana kammala, "A cikin wani nau'in hulɗa da ke da alaƙa da al'adun bindiga mai tasowa da gwarzo marar ganuwa, kawai ba ya samun wayewa fiye da wannan. " Kashi na Farko ya sami maki 87/100 da 85.59% a kan sake dubawa na Metacritic da GameRankings bi da bi. IGN ya ba da Episode One "Mafi kyawun FPS na PC na 2006" kuma ya bayyana shi a matsayin "babban bang don buck ta amfani da sabon shirin shirin na Valve", kodayake bai bayar da "cikakkiyar ƙwarewar Half-Life 2 ba". GameSpy ya tsara Kashi Na Daya...  Tambaya: Yaya tsawon sa'o'i ne Kashi na Daya ya dauka kafin ya kammala?
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