From pen-and-paper Sudoku and crosswords to specialized brain training apps, options for brain games are plentiful. To give your brain a workout while having fun, try these games and activities that may improve your mental focus and fitness.

12 best brain games for adults. With so many brain teasers, puzzles, and word games, the right games for you can be hard to narrow down. Here are 12 great options to try, including plenty of free brain games for adults: 1. Sudoku. Sudoku is a popular logic-based number puzzle that originated in Japan. The goal is to fill a 9x9 grid with numbers ...