The Mother 3 fan translation is a complete English-language localization of the 2006 Japanese video game Mother 3 by members of the EarthBound fan community led by Clyde "Tomato" Mandelin. The original game was released in Japan after a decade of development hell. When fan interest in an English localization went unanswered, members of the EarthBound fansite Starmen.net announced their own fan translation in November 2006.
The dozen fans who worked on the project had been vetted by Tomato and had prior localization experience. Thousands of hours were put into the project between hacking the game data and translating the 1,000 pages of scripted dialogue. They built their own tools for the work. The completed version was released in October 2008 and issued as a patch. The patch was downloaded over 100,000 times in its first week. A fan-made, full-color, 200-page, professional-quality player's guide was released alongside the translation.