I bought a blue file on Steam for 4.2 yuan. Can you help me check if it is genuine?

Little crybaby Hinawa is just so cute

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Backrooms—Worm Entity

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Nymph trapping device

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Left 4 Dead 2 (SFM) Hard Rain - Return to Flooded Milltown

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Left 4 Dead 2 Tailred plugin (Tailred) installation

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Left 4 Dead 2: Escape from the city full of corpses [damned city] Expert Eight Specials No Injury Si

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This part is too cool! ! ! ! ! ! !

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[Game][Left 4 Dead 2]14 Years of Struggling to Survive

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[L4D2 Tank Massacre Show (Headphone Party Welfare)]

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Soybean Road 2—Bengbu Center

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L4D2 The super show jumping method you haven't seen before (silent time)

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【Legend of Survival 2】First-person demo of Shao Qian 2 MOD (download in the video introduction)

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"Legend of Survival 2" L4D2-Speed Run#-Barcelona-3:06-Coop (no death throughout)

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Such a Q bomb? Like it

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Left 4 Dead 2: “Morgue” – 4K Ultra HD, Highest Difficulty, Solo No-Damage Speedrun

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[First Exclusive Look at an Indie Game] 12-Minute Gameplay Demo of “My Three Kingdoms”

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[4K] Left 4 Dead 2 "Damn City" Realistic Expert No Injury Single Pass New bgm

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R18 Road.exe

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[4K] Left 4 Dead 2 exquisite tripartite map "Blockade" realistic expert single pass bgm

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Lord of the Fallen, You’re Really Making Me Fall! — Gameplay Preview & Review of “Lord of the Fallen

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