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 Is Felix Fun-Sized: No + Developer Name Casual Arts (4) Platform/OS Windows (8) Mac (1) Language German (2) Spanish (1) French (2) Japanese (1) English (3) Is Anthology Collection No (9) 9 items Sort by Bestselling - All-Time Bestselling - Monthly Bestselling - Weekly Bestselling - Yearly Developer Name Game Series Position Price Product List Date Product Name The Rainbow Machine Windows | German 究極のクリスマスパズラー Windows | Japanese Das ultimative Weihnachtsrätsel-Paket Windows | German Le Jeu de Réflexion Ultime pour Noël Windows | French The Ultimate Christmas Puzzler Windows | English The Rainbow Machine Windows | French The Rainbow Machine Windows | Spanish The Rainbow Machine Windows | English The Rainbow Machine Mac | English