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 Platform/OS: Windows Is Felix Fun-Sized: No + Developer Name Casual Arts (4) Collector's Edition No (8) Language German (2) Spanish (1) French (2) Japanese (1) English (2) Is Anthology Collection No (8) 8 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 | English The Rainbow Machine Windows | Spanish The Rainbow Machine Windows | French The Ultimate Christmas Puzzler Windows | English Le Jeu de Réflexion Ultime pour Noël Windows | French Das ultimative Weihnachtsrätsel-Paket Windows | German 究極のクリスマスパズラー Windows | Japanese The Rainbow Machine Windows | German