Brain Quest 3 & 4 is an educational puzzle video game released for Nintendo DS in North America on September 22, 2008.

The game was developed by Planet Moon Studios, and published by Electronic Arts.

The game was released at the same time as Brain Quest Grades 5 & 6 and is based on the curriculum-based card deck series Brain Quest.

The player plays as an unnamed character, who has young children quiz him trivia questions in multiple categories, such as English, science, mathematics, history, geography and a mixed mode, where all categories are combined into one quiz.

[1] Brain Quest Grades 3 & 4 received mixed to positive reviews upon release.