Brain Builder - Math Edition 

Over 500 million puzzles in a fun multimedia game ensure unlimited playing time. Sharpen your problem solving by tackling math problems that are presented at precisely your level. Feedback tells how far you've progressed.
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WordLab 

WordLab is a challenging new game that will change the way you spell FUN. At the start of each round you are presented with a 5, 6 or 7 letter word with hidden letters. Reach deep into your problem solving skills to guess the missing letters.
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Power-Tarot 

Please download the english version here: http://www.tarot-software.com/
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EMBook 

This free collection of tests in arithmetic, pre-algebra, algebra, trigonometry, hyperbolic trig and calculus offers step-by-step solutions together with extensive reference material and interactive training technique.
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MathAid Precalculus 

Java based math course includes theoretical concepts, hands-on examples featuring animated graphics and live formulas, problem-solving lessons, and customizable real time tests with solutions and evaluations.
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MathAid College Algebra 

Java based math course includes theoretical concepts, hands-on examples featuring animated graphics and live formulas, problem-solving lessons, and customizable real time tests with solutions and evaluations.
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