Brain Teaser Download and play free Brain Teasers & Brain Games for PC and Mac. Keep your mind sharp with riddles, memory tests, puzzles, and more! Narrow Your Search Primary Genre: Family Collector's Edition: No Language: English Platform/OS: Mac + 1 item Sort by Bestselling - All-Time Bestselling - Monthly Bestselling - Weekly Bestselling - Yearly Position Price Product List Date Product Name The Rainbow Machine Mac English Defeat the menacing Klepto Rats!