Liberty Prime was introduced in Fallout 3 in 2008 as a pre-war United States Army robot revived by the Brotherhood of Steel. His slogans about liberty and communism became some of the series' most quoted lines, and he returned in Fallout 4 to similar fanfare. Short clips of his announcements later circulated on gaming forums, YouTube edits, and soundboards, where the contrast between his sincere delivery and everyday situations made him a lasting meme. Fans still use the voice to parody overblown patriotism in games and politics.