I just got "Voices of the Void" game and I downloaded a 7Z File to play it but nothing to extract then I was reading 7zip archiver was needed but I lost on what to do now, I also joined their discord hoping someone would help but maybe you guys would know something about this.
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You can find that on the 7-Zip website, and if you mean this game, the icon next to the only file clearly indicates Windows.